Adding upstream version 2.11.4.upstream/2.11.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

27 files changed, 8995 insertions, 0 deletions

diff --git a/library/vendor/Zend/Cache/Backend.php b/library/vendor/Zend/Cache/Backend.php
new file mode 100644
index 0000000..6e1efde
--- /dev/null
+++ b/library/vendor/Zend/Cache/Backend.php
@@ -0,0 +1,285 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend
+{
+    /**
+     * Frontend or Core directives
+     *
+     * =====> (int) lifetime :
+     * - Cache lifetime (in seconds)
+     * - If null, the cache is valid forever
+     *
+     * =====> (int) logging :
+     * - if set to true, a logging is activated throw Zend_Log
+     *
+     * @var array directives
+     */
+    protected $_directives = array(
+        'lifetime' => 3600,
+        'logging'  => false,
+        'logger'   => null
+    );
+
+    /**
+     * Available options
+     *
+     * @var array available options
+     */
+    protected $_options = array();
+
+    /**
+     * Constructor
+     *
+     * @param  array $options Associative array of options
+     */
+    public function __construct(array $options = array())
+    {
+        foreach ($options as $name => $value) {
+            $this->setOption($name, $value);
+        }
+    }
+
+    /**
+     * Set the frontend directives
+     *
+     * @param  array $directives Assoc of directives
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function setDirectives($directives)
+    {
+        if (!is_array($directives)) Zend_Cache::throwException('Directives parameter must be an array');
+        while (list($name, $value) = each($directives)) {
+            if (!is_string($name)) {
+                Zend_Cache::throwException("Incorrect option name : $name");
+            }
+            $name = strtolower($name);
+            if (array_key_exists($name, $this->_directives)) {
+                $this->_directives[$name] = $value;
+            }
+
+        }
+
+        $this->_loggerSanity();
+    }
+
+    /**
+     * Set an option
+     *
+     * @param  string $name
+     * @param  mixed  $value
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function setOption($name, $value)
+    {
+        if (!is_string($name)) {
+            Zend_Cache::throwException("Incorrect option name : $name");
+        }
+        $name = strtolower($name);
+        if (array_key_exists($name, $this->_options)) {
+            $this->_options[$name] = $value;
+        }
+    }
+
+    /**
+     * Returns an option
+     *
+     * @param string $name Optional, the options name to return
+     * @throws Zend_Cache_Exceptions
+     * @return mixed
+     */
+    public function getOption($name)
+    {
+        $name = strtolower($name);
+
+        if (array_key_exists($name, $this->_options)) {
+            return $this->_options[$name];
+        }
+
+        if (array_key_exists($name, $this->_directives)) {
+            return $this->_directives[$name];
+        }
+
+        Zend_Cache::throwException("Incorrect option name : {$name}");
+    }
+
+    /**
+     * Get the life time
+     *
+     * if $specificLifetime is not false, the given specific life time is used
+     * else, the global lifetime is used
+     *
+     * @param  int $specificLifetime
+     * @return int Cache life time
+     */
+    public function getLifetime($specificLifetime)
+    {
+        if ($specificLifetime === false) {
+            return $this->_directives['lifetime'];
+        }
+        return $specificLifetime;
+    }
+
+    /**
+     * Return true if the automatic cleaning is available for the backend
+     *
+     * DEPRECATED : use getCapabilities() instead
+     *
+     * @deprecated
+     * @return boolean
+     */
+    public function isAutomaticCleaningAvailable()
+    {
+        return true;
+    }
+
+    /**
+     * Determine system TMP directory and detect if we have read access
+     *
+     * inspired from Zend_File_Transfer_Adapter_Abstract
+     *
+     * @return string
+     * @throws Zend_Cache_Exception if unable to determine directory
+     */
+    public function getTmpDir()
+    {
+        $tmpdir = array();
+        foreach (array($_ENV, $_SERVER) as $tab) {
+            foreach (array('TMPDIR', 'TEMP', 'TMP', 'windir', 'SystemRoot') as $key) {
+                if (isset($tab[$key]) && is_string($tab[$key])) {
+                    if (($key == 'windir') or ($key == 'SystemRoot')) {
+                        $dir = realpath($tab[$key] . '\\temp');
+                    } else {
+                        $dir = realpath($tab[$key]);
+                    }
+                    if ($this->_isGoodTmpDir($dir)) {
+                        return $dir;
+                    }
+                }
+            }
+        }
+        $upload = ini_get('upload_tmp_dir');
+        if ($upload) {
+            $dir = realpath($upload);
+            if ($this->_isGoodTmpDir($dir)) {
+                return $dir;
+            }
+        }
+        if (function_exists('sys_get_temp_dir')) {
+            $dir = sys_get_temp_dir();
+            if ($this->_isGoodTmpDir($dir)) {
+                return $dir;
+            }
+        }
+        // Attemp to detect by creating a temporary file
+        $tempFile = tempnam(md5(uniqid(rand(), TRUE)), '');
+        if ($tempFile) {
+            $dir = realpath(dirname($tempFile));
+            unlink($tempFile);
+            if ($this->_isGoodTmpDir($dir)) {
+                return $dir;
+            }
+        }
+        if ($this->_isGoodTmpDir('/tmp')) {
+            return '/tmp';
+        }
+        if ($this->_isGoodTmpDir('\\temp')) {
+            return '\\temp';
+        }
+        Zend_Cache::throwException('Could not determine temp directory, please specify a cache_dir manually');
+    }
+
+    /**
+     * Verify if the given temporary directory is readable and writable
+     *
+     * @param string $dir temporary directory
+     * @return boolean true if the directory is ok
+     */
+    protected function _isGoodTmpDir($dir)
+    {
+        if (is_readable($dir)) {
+            if (is_writable($dir)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Make sure if we enable logging that the Zend_Log class
+     * is available.
+     * Create a default log object if none is set.
+     *
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    protected function _loggerSanity()
+    {
+        if (!isset($this->_directives['logging']) || !$this->_directives['logging']) {
+            return;
+        }
+
+        if (isset($this->_directives['logger'])) {
+            if ($this->_directives['logger'] instanceof Zend_Log) {
+                return;
+            }
+            Zend_Cache::throwException('Logger object is not an instance of Zend_Log class.');
+        }
+
+        // Create a default logger to the standard output stream
+        $logger = new Zend_Log(new Zend_Log_Writer_Stream('php://output'));
+        $logger->addFilter(new Zend_Log_Filter_Priority(Zend_Log::WARN, '<='));
+        $this->_directives['logger'] = $logger;
+    }
+
+    /**
+     * Log a message at the WARN (4) priority.
+     *
+     * @param  string $message
+     * @param  int    $priority
+     * @return void
+     */
+    protected function _log($message, $priority = 4)
+    {
+        if (!$this->_directives['logging']) {
+            return;
+        }
+
+        if (!isset($this->_directives['logger'])) {
+            Zend_Cache::throwException('Logging is enabled but logger is not set.');
+        }
+        $logger = $this->_directives['logger'];
+        if (!$logger instanceof Zend_Log) {
+            Zend_Cache::throwException('Logger object is not an instance of Zend_Log class.');
+        }
+        $logger->log($message, $priority);
+    }
+}
diff --git a/library/vendor/Zend/Cache/Backend/Apc.php b/library/vendor/Zend/Cache/Backend/Apc.php
new file mode 100644
index 0000000..9605323
--- /dev/null
+++ b/library/vendor/Zend/Cache/Backend/Apc.php
@@ -0,0 +1,353 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+
+/**
+ * @see Zend_Cache_Backend
+ */
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_Apc extends Zend_Cache_Backend implements Zend_Cache_Backend_ExtendedInterface
+{
+    /**
+     * Log message
+     */
+    const TAGS_UNSUPPORTED_BY_CLEAN_OF_APC_BACKEND = 'Zend_Cache_Backend_Apc::clean() : tags are unsupported by the Apc backend';
+    const TAGS_UNSUPPORTED_BY_SAVE_OF_APC_BACKEND =  'Zend_Cache_Backend_Apc::save() : tags are unsupported by the Apc backend';
+
+    /**
+     * Constructor
+     *
+     * @param  array $options associative array of options
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        if (!extension_loaded('apc')) {
+            Zend_Cache::throwException('The apc extension must be loaded for using this backend !');
+        }
+        parent::__construct($options);
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * WARNING $doNotTestCacheValidity=true is unsupported by the Apc backend
+     *
+     * @param  string  $id                     cache id
+     * @param  boolean $doNotTestCacheValidity if set to true, the cache validity won't be tested
+     * @return string cached datas (or false)
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        $tmp = apc_fetch($id);
+        if (is_array($tmp)) {
+            return $tmp[0];
+        }
+        return false;
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param  string $id cache id
+     * @return mixed false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id)
+    {
+        $tmp = apc_fetch($id);
+        if (is_array($tmp)) {
+            return $tmp[1];
+        }
+        return false;
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param string $data datas to cache
+     * @param string $id cache id
+     * @param array $tags array of strings, the cache record will be tagged by each string entry
+     * @param int $specificLifetime if != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean true if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        $lifetime = $this->getLifetime($specificLifetime);
+        $result = apc_store($id, array($data, time(), $lifetime), $lifetime);
+        if (count($tags) > 0) {
+            $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_APC_BACKEND);
+        }
+        return $result;
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id cache id
+     * @return boolean true if no problem
+     */
+    public function remove($id)
+    {
+        return apc_delete($id);
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * 'all' (default)  => remove all cache entries ($tags is not used)
+     * 'old'            => unsupported
+     * 'matchingTag'    => unsupported
+     * 'notMatchingTag' => unsupported
+     * 'matchingAnyTag' => unsupported
+     *
+     * @param  string $mode clean mode
+     * @param  array  $tags array of tags
+     * @throws Zend_Cache_Exception
+     * @return boolean true if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        switch ($mode) {
+            case Zend_Cache::CLEANING_MODE_ALL:
+                return apc_clear_cache('user');
+                break;
+            case Zend_Cache::CLEANING_MODE_OLD:
+                $this->_log("Zend_Cache_Backend_Apc::clean() : CLEANING_MODE_OLD is unsupported by the Apc backend");
+                break;
+            case Zend_Cache::CLEANING_MODE_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG:
+                $this->_log(self::TAGS_UNSUPPORTED_BY_CLEAN_OF_APC_BACKEND);
+                break;
+            default:
+                Zend_Cache::throwException('Invalid mode for clean() method');
+                break;
+        }
+    }
+
+    /**
+     * Return true if the automatic cleaning is available for the backend
+     *
+     * DEPRECATED : use getCapabilities() instead
+     *
+     * @deprecated
+     * @return boolean
+     */
+    public function isAutomaticCleaningAvailable()
+    {
+        return false;
+    }
+
+    /**
+     * Return the filling percentage of the backend storage
+     *
+     * @throws Zend_Cache_Exception
+     * @return int integer between 0 and 100
+     */
+    public function getFillingPercentage()
+    {
+        $mem = apc_sma_info(true);
+        $memSize    = $mem['num_seg'] * $mem['seg_size'];
+        $memAvailable= $mem['avail_mem'];
+        $memUsed = $memSize - $memAvailable;
+        if ($memSize == 0) {
+            Zend_Cache::throwException('can\'t get apc memory size');
+        }
+        if ($memUsed > $memSize) {
+            return 100;
+        }
+        return ((int) (100. * ($memUsed / $memSize)));
+    }
+
+    /**
+     * Return an array of stored tags
+     *
+     * @return array array of stored tags (string)
+     */
+    public function getTags()
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_APC_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which match given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching cache ids (string)
+     */
+    public function getIdsMatchingTags($tags = array())
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_APC_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which don't match given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of not matching cache ids (string)
+     */
+    public function getIdsNotMatchingTags($tags = array())
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_APC_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which match any given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of any matching cache ids (string)
+     */
+    public function getIdsMatchingAnyTags($tags = array())
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_APC_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids
+     *
+     * @return array array of stored cache ids (string)
+     */
+    public function getIds()
+    {
+        $ids      = array();
+        $iterator = new APCIterator('user', null, APC_ITER_KEY);
+        foreach ($iterator as $item) {
+            $ids[] = $item['key'];
+        }
+
+        return $ids;
+    }
+
+    /**
+     * Return an array of metadatas for the given cache id
+     *
+     * The array must include these keys :
+     * - expire : the expire timestamp
+     * - tags : a string array of tags
+     * - mtime : timestamp of last modification time
+     *
+     * @param string $id cache id
+     * @return array array of metadatas (false if the cache id is not found)
+     */
+    public function getMetadatas($id)
+    {
+        $tmp = apc_fetch($id);
+        if (is_array($tmp)) {
+            $data = $tmp[0];
+            $mtime = $tmp[1];
+            if (!isset($tmp[2])) {
+                // because this record is only with 1.7 release
+                // if old cache records are still there...
+                return false;
+            }
+            $lifetime = $tmp[2];
+            return array(
+                'expire' => $mtime + $lifetime,
+                'tags' => array(),
+                'mtime' => $mtime
+            );
+        }
+        return false;
+    }
+
+    /**
+     * Give (if possible) an extra lifetime to the given cache id
+     *
+     * @param string $id cache id
+     * @param int $extraLifetime
+     * @return boolean true if ok
+     */
+    public function touch($id, $extraLifetime)
+    {
+        $tmp = apc_fetch($id);
+        if (is_array($tmp)) {
+            $data = $tmp[0];
+            $mtime = $tmp[1];
+            if (!isset($tmp[2])) {
+                // because this record is only with 1.7 release
+                // if old cache records are still there...
+                return false;
+            }
+            $lifetime = $tmp[2];
+            $newLifetime = $lifetime - (time() - $mtime) + $extraLifetime;
+            if ($newLifetime <=0) {
+                return false;
+            }
+            apc_store($id, array($data, time(), $newLifetime), $newLifetime);
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Return an associative array of capabilities (booleans) of the backend
+     *
+     * The array must include these keys :
+     * - automatic_cleaning (is automating cleaning necessary)
+     * - tags (are tags supported)
+     * - expired_read (is it possible to read expired cache records
+     *                 (for doNotTestCacheValidity option for example))
+     * - priority does the backend deal with priority when saving
+     * - infinite_lifetime (is infinite lifetime can work with this backend)
+     * - get_list (is it possible to get the list of cache ids and the complete list of tags)
+     *
+     * @return array associative of with capabilities
+     */
+    public function getCapabilities()
+    {
+        return array(
+            'automatic_cleaning' => false,
+            'tags' => false,
+            'expired_read' => false,
+            'priority' => false,
+            'infinite_lifetime' => false,
+            'get_list' => true
+        );
+    }
+
+}
diff --git a/library/vendor/Zend/Cache/Backend/BlackHole.php b/library/vendor/Zend/Cache/Backend/BlackHole.php
new file mode 100644
index 0000000..8732c19
--- /dev/null
+++ b/library/vendor/Zend/Cache/Backend/BlackHole.php
@@ -0,0 +1,248 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+
+/**
+ * @see Zend_Cache_Backend
+ */
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_BlackHole
+    extends Zend_Cache_Backend
+    implements Zend_Cache_Backend_ExtendedInterface
+{
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * @param  string $id cache id
+     * @param  boolean $doNotTestCacheValidity if set to true, the cache validity won't be tested
+     * @return string|false cached datas
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        return false;
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param  string $id cache id
+     * @return mixed false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id)
+    {
+        return false;
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param  string $data             Datas to cache
+     * @param  string $id               Cache id
+     * @param  array  $tags             Array of strings, the cache record will be tagged by each string entry
+     * @param  int    $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean true if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        return true;
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id cache id
+     * @return boolean true if no problem
+     */
+    public function remove($id)
+    {
+        return true;
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * 'all' (default)  => remove all cache entries ($tags is not used)
+     * 'old'            => remove too old cache entries ($tags is not used)
+     * 'matchingTag'    => remove cache entries matching all given tags
+     *                     ($tags can be an array of strings or a single string)
+     * 'notMatchingTag' => remove cache entries not matching one of the given tags
+     *                     ($tags can be an array of strings or a single string)
+     * 'matchingAnyTag' => remove cache entries matching any given tags
+     *                     ($tags can be an array of strings or a single string)
+     *
+     * @param  string $mode clean mode
+     * @param  tags array $tags array of tags
+     * @return boolean true if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        return true;
+    }
+
+    /**
+     * Return an array of stored cache ids
+     *
+     * @return array array of stored cache ids (string)
+     */
+    public function getIds()
+    {
+        return array();
+    }
+
+    /**
+     * Return an array of stored tags
+     *
+     * @return array array of stored tags (string)
+     */
+    public function getTags()
+    {
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which match given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching cache ids (string)
+     */
+    public function getIdsMatchingTags($tags = array())
+    {
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which don't match given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of not matching cache ids (string)
+     */
+    public function getIdsNotMatchingTags($tags = array())
+    {
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which match any given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param  array $tags array of tags
+     * @return array array of any matching cache ids (string)
+     */
+    public function getIdsMatchingAnyTags($tags = array())
+    {
+        return array();
+    }
+
+    /**
+     * Return the filling percentage of the backend storage
+     *
+     * @return int integer between 0 and 100
+     * @throws Zend_Cache_Exception
+     */
+    public function getFillingPercentage()
+    {
+        return 0;
+    }
+
+    /**
+     * Return an array of metadatas for the given cache id
+     *
+     * The array must include these keys :
+     * - expire : the expire timestamp
+     * - tags : a string array of tags
+     * - mtime : timestamp of last modification time
+     *
+     * @param  string $id cache id
+     * @return array array of metadatas (false if the cache id is not found)
+     */
+    public function getMetadatas($id)
+    {
+        return false;
+    }
+
+    /**
+     * Give (if possible) an extra lifetime to the given cache id
+     *
+     * @param  string $id cache id
+     * @param  int $extraLifetime
+     * @return boolean true if ok
+     */
+    public function touch($id, $extraLifetime)
+    {
+        return false;
+    }
+
+    /**
+     * Return an associative array of capabilities (booleans) of the backend
+     *
+     * The array must include these keys :
+     * - automatic_cleaning (is automating cleaning necessary)
+     * - tags (are tags supported)
+     * - expired_read (is it possible to read expired cache records
+     *                 (for doNotTestCacheValidity option for example))
+     * - priority does the backend deal with priority when saving
+     * - infinite_lifetime (is infinite lifetime can work with this backend)
+     * - get_list (is it possible to get the list of cache ids and the complete list of tags)
+     *
+     * @return array associative of with capabilities
+     */
+    public function getCapabilities()
+    {
+        return array(
+            'automatic_cleaning' => true,
+            'tags'               => true,
+            'expired_read'       => true,
+            'priority'           => true,
+            'infinite_lifetime'  => true,
+            'get_list'           => true,
+        );
+    }
+
+    /**
+     * PUBLIC METHOD FOR UNIT TESTING ONLY !
+     *
+     * Force a cache record to expire
+     *
+     * @param string $id cache id
+     */
+    public function ___expire($id)
+    {
+    }
+}
diff --git a/library/vendor/Zend/Cache/Backend/ExtendedInterface.php b/library/vendor/Zend/Cache/Backend/ExtendedInterface.php
new file mode 100644
index 0000000..2f0f526
--- /dev/null
+++ b/library/vendor/Zend/Cache/Backend/ExtendedInterface.php
@@ -0,0 +1,125 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+interface Zend_Cache_Backend_ExtendedInterface extends Zend_Cache_Backend_Interface
+{
+
+    /**
+     * Return an array of stored cache ids
+     *
+     * @return array array of stored cache ids (string)
+     */
+    public function getIds();
+
+    /**
+     * Return an array of stored tags
+     *
+     * @return array array of stored tags (string)
+     */
+    public function getTags();
+
+    /**
+     * Return an array of stored cache ids which match given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching cache ids (string)
+     */
+    public function getIdsMatchingTags($tags = array());
+
+    /**
+     * Return an array of stored cache ids which don't match given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of not matching cache ids (string)
+     */
+    public function getIdsNotMatchingTags($tags = array());
+
+    /**
+     * Return an array of stored cache ids which match any given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of any matching cache ids (string)
+     */
+    public function getIdsMatchingAnyTags($tags = array());
+
+    /**
+     * Return the filling percentage of the backend storage
+     *
+     * @return int integer between 0 and 100
+     */
+    public function getFillingPercentage();
+
+    /**
+     * Return an array of metadatas for the given cache id
+     *
+     * The array must include these keys :
+     * - expire : the expire timestamp
+     * - tags : a string array of tags
+     * - mtime : timestamp of last modification time
+     *
+     * @param string $id cache id
+     * @return array array of metadatas (false if the cache id is not found)
+     */
+    public function getMetadatas($id);
+
+    /**
+     * Give (if possible) an extra lifetime to the given cache id
+     *
+     * @param string $id cache id
+     * @param int $extraLifetime
+     * @return boolean true if ok
+     */
+    public function touch($id, $extraLifetime);
+
+    /**
+     * Return an associative array of capabilities (booleans) of the backend
+     *
+     * The array must include these keys :
+     * - automatic_cleaning (is automating cleaning necessary)
+     * - tags (are tags supported)
+     * - expired_read (is it possible to read expired cache records
+     *                 (for doNotTestCacheValidity option for example))
+     * - priority does the backend deal with priority when saving
+     * - infinite_lifetime (is infinite lifetime can work with this backend)
+     * - get_list (is it possible to get the list of cache ids and the complete list of tags)
+     *
+     * @return array associative of with capabilities
+     */
+    public function getCapabilities();
+
+}
diff --git a/library/vendor/Zend/Cache/Backend/File.php b/library/vendor/Zend/Cache/Backend/File.php
new file mode 100644
index 0000000..0fe5475
--- /dev/null
+++ b/library/vendor/Zend/Cache/Backend/File.php
@@ -0,0 +1,1035 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+
+/**
+ * @see Zend_Cache_Backend
+ */
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_File extends Zend_Cache_Backend implements Zend_Cache_Backend_ExtendedInterface
+{
+    /**
+     * Available options
+     *
+     * =====> (string) cache_dir :
+     * - Directory where to put the cache files
+     *
+     * =====> (boolean) file_locking :
+     * - Enable / disable file_locking
+     * - Can avoid cache corruption under bad circumstances but it doesn't work on multithread
+     * webservers and on NFS filesystems for example
+     *
+     * =====> (boolean) read_control :
+     * - Enable / disable read control
+     * - If enabled, a control key is embeded in cache file and this key is compared with the one
+     * calculated after the reading.
+     *
+     * =====> (string) read_control_type :
+     * - Type of read control (only if read control is enabled). Available values are :
+     *   'md5' for a md5 hash control (best but slowest)
+     *   'crc32' for a crc32 hash control (lightly less safe but faster, better choice)
+     *   'adler32' for an adler32 hash control (excellent choice too, faster than crc32)
+     *   'strlen' for a length only test (fastest)
+     *
+     * =====> (int) hashed_directory_level :
+     * - Hashed directory level
+     * - Set the hashed directory structure level. 0 means "no hashed directory
+     * structure", 1 means "one level of directory", 2 means "two levels"...
+     * This option can speed up the cache only when you have many thousands of
+     * cache file. Only specific benchs can help you to choose the perfect value
+     * for you. Maybe, 1 or 2 is a good start.
+     *
+     * =====> (int) hashed_directory_umask :
+     * - deprecated
+     * - Permissions for hashed directory structure
+     *
+     * =====> (int) hashed_directory_perm :
+     * - Permissions for hashed directory structure
+     *
+     * =====> (string) file_name_prefix :
+     * - prefix for cache files
+     * - be really carefull with this option because a too generic value in a system cache dir
+     *   (like /tmp) can cause disasters when cleaning the cache
+     *
+     * =====> (int) cache_file_umask :
+     * - deprecated
+     * - Permissions for cache files
+     *
+     * =====> (int) cache_file_perm :
+     * - Permissions for cache files
+     *
+     * =====> (int) metatadatas_array_max_size :
+     * - max size for the metadatas array (don't change this value unless you
+     *   know what you are doing)
+     *
+     * @var array available options
+     */
+    protected $_options = array(
+        'cache_dir' => null,
+        'file_locking' => true,
+        'read_control' => true,
+        'read_control_type' => 'crc32',
+        'hashed_directory_level' => 0,
+        'hashed_directory_perm' => 0700,
+        'file_name_prefix' => 'zend_cache',
+        'cache_file_perm' => 0600,
+        'metadatas_array_max_size' => 100
+    );
+
+    /**
+     * Array of metadatas (each item is an associative array)
+     *
+     * @var array
+     */
+    protected $_metadatasArray = array();
+
+
+    /**
+     * Constructor
+     *
+     * @param  array $options associative array of options
+     * @throws Zend_Cache_Exception
+     */
+    public function __construct(array $options = array())
+    {
+        parent::__construct($options);
+        if ($this->_options['cache_dir'] !== null) { // particular case for this option
+            $this->setCacheDir($this->_options['cache_dir']);
+        } else {
+            $this->setCacheDir(self::getTmpDir() . DIRECTORY_SEPARATOR, false);
+        }
+        if (isset($this->_options['file_name_prefix'])) { // particular case for this option
+            if (!preg_match('~^[a-zA-Z0-9_]+$~D', $this->_options['file_name_prefix'])) {
+                Zend_Cache::throwException('Invalid file_name_prefix : must use only [a-zA-Z0-9_]');
+            }
+        }
+        if ($this->_options['metadatas_array_max_size'] < 10) {
+            Zend_Cache::throwException('Invalid metadatas_array_max_size, must be > 10');
+        }
+
+        if (isset($options['hashed_directory_umask'])) {
+            // See #ZF-12047
+            trigger_error("'hashed_directory_umask' is deprecated -> please use 'hashed_directory_perm' instead", E_USER_NOTICE);
+            if (!isset($options['hashed_directory_perm'])) {
+                $options['hashed_directory_perm'] = $options['hashed_directory_umask'];
+            }
+        }
+        if (isset($options['hashed_directory_perm']) && is_string($options['hashed_directory_perm'])) {
+            // See #ZF-4422
+            $this->_options['hashed_directory_perm'] = octdec($this->_options['hashed_directory_perm']);
+        }
+
+        if (isset($options['cache_file_umask'])) {
+            // See #ZF-12047
+            trigger_error("'cache_file_umask' is deprecated -> please use 'cache_file_perm' instead", E_USER_NOTICE);
+            if (!isset($options['cache_file_perm'])) {
+                $options['cache_file_perm'] = $options['cache_file_umask'];
+            }
+        }
+        if (isset($options['cache_file_perm']) && is_string($options['cache_file_perm'])) {
+            // See #ZF-4422
+            $this->_options['cache_file_perm'] = octdec($this->_options['cache_file_perm']);
+        }
+    }
+
+    /**
+     * Set the cache_dir (particular case of setOption() method)
+     *
+     * @param  string  $value
+     * @param  boolean $trailingSeparator If true, add a trailing separator is necessary
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function setCacheDir($value, $trailingSeparator = true)
+    {
+        if (!is_dir($value)) {
+            Zend_Cache::throwException(sprintf('cache_dir "%s" must be a directory', $value));
+        }
+        if (!is_writable($value)) {
+            Zend_Cache::throwException(sprintf('cache_dir "%s" is not writable', $value));
+        }
+        if ($trailingSeparator) {
+            // add a trailing DIRECTORY_SEPARATOR if necessary
+            $value = rtrim(realpath($value), '\\/') . DIRECTORY_SEPARATOR;
+        }
+        $this->_options['cache_dir'] = $value;
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * @param string $id cache id
+     * @param boolean $doNotTestCacheValidity if set to true, the cache validity won't be tested
+     * @return string|false cached datas
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        if (!($this->_test($id, $doNotTestCacheValidity))) {
+            // The cache is not hit !
+            return false;
+        }
+        $metadatas = $this->_getMetadatas($id);
+        $file = $this->_file($id);
+        $data = $this->_fileGetContents($file);
+        if ($this->_options['read_control']) {
+            $hashData = $this->_hash($data, $this->_options['read_control_type']);
+            $hashControl = $metadatas['hash'];
+            if ($hashData != $hashControl) {
+                // Problem detected by the read control !
+                $this->_log('Zend_Cache_Backend_File::load() / read_control : stored hash and computed hash do not match');
+                $this->remove($id);
+                return false;
+            }
+        }
+        return $data;
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param string $id cache id
+     * @return mixed false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id)
+    {
+        clearstatcache();
+        return $this->_test($id, false);
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param  string      $data             Datas to cache
+     * @param  string      $id               Cache id
+     * @param  array       $tags             Array of strings, the cache record will be tagged by each string entry
+     * @param  boolean|int $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean true if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        clearstatcache();
+        $file = $this->_file($id);
+        $path = $this->_path($id);
+        if ($this->_options['hashed_directory_level'] > 0) {
+            if (!is_writable($path)) {
+                // maybe, we just have to build the directory structure
+                $this->_recursiveMkdirAndChmod($id);
+            }
+            if (!is_writable($path)) {
+                return false;
+            }
+        }
+        if ($this->_options['read_control']) {
+            $hash = $this->_hash($data, $this->_options['read_control_type']);
+        } else {
+            $hash = '';
+        }
+        $metadatas = array(
+            'hash' => $hash,
+            'mtime' => time(),
+            'expire' => $this->_expireTime($this->getLifetime($specificLifetime)),
+            'tags' => $tags
+        );
+        $res = $this->_setMetadatas($id, $metadatas);
+        if (!$res) {
+            $this->_log('Zend_Cache_Backend_File::save() / error on saving metadata');
+            return false;
+        }
+        $res = $this->_filePutContents($file, $data);
+        return $res;
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id cache id
+     * @return boolean true if no problem
+     */
+    public function remove($id)
+    {
+        $file = $this->_file($id);
+        $boolRemove   = $this->_remove($file);
+        $boolMetadata = $this->_delMetadatas($id);
+        return $boolMetadata && $boolRemove;
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     *
+     * Zend_Cache::CLEANING_MODE_ALL (default)    => remove all cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_OLD              => remove too old cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_MATCHING_TAG     => remove cache entries matching all given tags
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => remove cache entries not {matching one of the given tags}
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG => remove cache entries matching any given tags
+     *                                               ($tags can be an array of strings or a single string)
+     *
+     * @param string $mode clean mode
+     * @param array $tags array of tags
+     * @return boolean true if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        // We use this protected method to hide the recursive stuff
+        clearstatcache();
+        return $this->_clean($this->_options['cache_dir'], $mode, $tags);
+    }
+
+    /**
+     * Return an array of stored cache ids
+     *
+     * @return array array of stored cache ids (string)
+     */
+    public function getIds()
+    {
+        return $this->_get($this->_options['cache_dir'], 'ids', array());
+    }
+
+    /**
+     * Return an array of stored tags
+     *
+     * @return array array of stored tags (string)
+     */
+    public function getTags()
+    {
+        return $this->_get($this->_options['cache_dir'], 'tags', array());
+    }
+
+    /**
+     * Return an array of stored cache ids which match given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching cache ids (string)
+     */
+    public function getIdsMatchingTags($tags = array())
+    {
+        return $this->_get($this->_options['cache_dir'], 'matching', $tags);
+    }
+
+    /**
+     * Return an array of stored cache ids which don't match given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of not matching cache ids (string)
+     */
+    public function getIdsNotMatchingTags($tags = array())
+    {
+        return $this->_get($this->_options['cache_dir'], 'notMatching', $tags);
+    }
+
+    /**
+     * Return an array of stored cache ids which match any given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of any matching cache ids (string)
+     */
+    public function getIdsMatchingAnyTags($tags = array())
+    {
+        return $this->_get($this->_options['cache_dir'], 'matchingAny', $tags);
+    }
+
+    /**
+     * Return the filling percentage of the backend storage
+     *
+     * @throws Zend_Cache_Exception
+     * @return int integer between 0 and 100
+     */
+    public function getFillingPercentage()
+    {
+        $free = disk_free_space($this->_options['cache_dir']);
+        $total = disk_total_space($this->_options['cache_dir']);
+        if ($total == 0) {
+            Zend_Cache::throwException('can\'t get disk_total_space');
+        } else {
+            if ($free >= $total) {
+                return 100;
+            }
+            return ((int) (100. * ($total - $free) / $total));
+        }
+    }
+
+    /**
+     * Return an array of metadatas for the given cache id
+     *
+     * The array must include these keys :
+     * - expire : the expire timestamp
+     * - tags : a string array of tags
+     * - mtime : timestamp of last modification time
+     *
+     * @param string $id cache id
+     * @return array array of metadatas (false if the cache id is not found)
+     */
+    public function getMetadatas($id)
+    {
+        $metadatas = $this->_getMetadatas($id);
+        if (!$metadatas) {
+            return false;
+        }
+        if (time() > $metadatas['expire']) {
+            return false;
+        }
+        return array(
+            'expire' => $metadatas['expire'],
+            'tags' => $metadatas['tags'],
+            'mtime' => $metadatas['mtime']
+        );
+    }
+
+    /**
+     * Give (if possible) an extra lifetime to the given cache id
+     *
+     * @param string $id cache id
+     * @param int $extraLifetime
+     * @return boolean true if ok
+     */
+    public function touch($id, $extraLifetime)
+    {
+        $metadatas = $this->_getMetadatas($id);
+        if (!$metadatas) {
+            return false;
+        }
+        if (time() > $metadatas['expire']) {
+            return false;
+        }
+        $newMetadatas = array(
+            'hash' => $metadatas['hash'],
+            'mtime' => time(),
+            'expire' => $metadatas['expire'] + $extraLifetime,
+            'tags' => $metadatas['tags']
+        );
+        $res = $this->_setMetadatas($id, $newMetadatas);
+        if (!$res) {
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Return an associative array of capabilities (booleans) of the backend
+     *
+     * The array must include these keys :
+     * - automatic_cleaning (is automating cleaning necessary)
+     * - tags (are tags supported)
+     * - expired_read (is it possible to read expired cache records
+     *                 (for doNotTestCacheValidity option for example))
+     * - priority does the backend deal with priority when saving
+     * - infinite_lifetime (is infinite lifetime can work with this backend)
+     * - get_list (is it possible to get the list of cache ids and the complete list of tags)
+     *
+     * @return array associative of with capabilities
+     */
+    public function getCapabilities()
+    {
+        return array(
+            'automatic_cleaning' => true,
+            'tags' => true,
+            'expired_read' => true,
+            'priority' => false,
+            'infinite_lifetime' => true,
+            'get_list' => true
+        );
+    }
+
+    /**
+     * PUBLIC METHOD FOR UNIT TESTING ONLY !
+     *
+     * Force a cache record to expire
+     *
+     * @param string $id cache id
+     */
+    public function ___expire($id)
+    {
+        $metadatas = $this->_getMetadatas($id);
+        if ($metadatas) {
+            $metadatas['expire'] = 1;
+            $this->_setMetadatas($id, $metadatas);
+        }
+    }
+
+    /**
+     * Get a metadatas record
+     *
+     * @param  string $id  Cache id
+     * @return array|false Associative array of metadatas
+     */
+    protected function _getMetadatas($id)
+    {
+        if (isset($this->_metadatasArray[$id])) {
+            return $this->_metadatasArray[$id];
+        } else {
+            $metadatas = $this->_loadMetadatas($id);
+            if (!$metadatas) {
+                return false;
+            }
+            $this->_setMetadatas($id, $metadatas, false);
+            return $metadatas;
+        }
+    }
+
+    /**
+     * Set a metadatas record
+     *
+     * @param  string $id        Cache id
+     * @param  array  $metadatas Associative array of metadatas
+     * @param  boolean $save     optional pass false to disable saving to file
+     * @return boolean True if no problem
+     */
+    protected function _setMetadatas($id, $metadatas, $save = true)
+    {
+        if (count($this->_metadatasArray) >= $this->_options['metadatas_array_max_size']) {
+            $n = (int) ($this->_options['metadatas_array_max_size'] / 10);
+            $this->_metadatasArray = array_slice($this->_metadatasArray, $n);
+        }
+        if ($save) {
+            $result = $this->_saveMetadatas($id, $metadatas);
+            if (!$result) {
+                return false;
+            }
+        }
+        $this->_metadatasArray[$id] = $metadatas;
+        return true;
+    }
+
+    /**
+     * Drop a metadata record
+     *
+     * @param  string $id Cache id
+     * @return boolean True if no problem
+     */
+    protected function _delMetadatas($id)
+    {
+        if (isset($this->_metadatasArray[$id])) {
+            unset($this->_metadatasArray[$id]);
+        }
+        $file = $this->_metadatasFile($id);
+        return $this->_remove($file);
+    }
+
+    /**
+     * Clear the metadatas array
+     *
+     * @return void
+     */
+    protected function _cleanMetadatas()
+    {
+        $this->_metadatasArray = array();
+    }
+
+    /**
+     * Load metadatas from disk
+     *
+     * @param  string $id Cache id
+     * @return array|false Metadatas associative array
+     */
+    protected function _loadMetadatas($id)
+    {
+        $file = $this->_metadatasFile($id);
+        $result = $this->_fileGetContents($file);
+        if (!$result) {
+            return false;
+        }
+        $tmp = @unserialize($result);
+        return $tmp;
+    }
+
+    /**
+     * Save metadatas to disk
+     *
+     * @param  string $id        Cache id
+     * @param  array  $metadatas Associative array
+     * @return boolean True if no problem
+     */
+    protected function _saveMetadatas($id, $metadatas)
+    {
+        $file = $this->_metadatasFile($id);
+        $result = $this->_filePutContents($file, serialize($metadatas));
+        if (!$result) {
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Make and return a file name (with path) for metadatas
+     *
+     * @param  string $id Cache id
+     * @return string Metadatas file name (with path)
+     */
+    protected function _metadatasFile($id)
+    {
+        $path = $this->_path($id);
+        $fileName = $this->_idToFileName('internal-metadatas---' . $id);
+        return $path . $fileName;
+    }
+
+    /**
+     * Check if the given filename is a metadatas one
+     *
+     * @param  string $fileName File name
+     * @return boolean True if it's a metadatas one
+     */
+    protected function _isMetadatasFile($fileName)
+    {
+        $id = $this->_fileNameToId($fileName);
+        if (substr($id, 0, 21) == 'internal-metadatas---') {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * Remove a file
+     *
+     * If we can't remove the file (because of locks or any problem), we will touch
+     * the file to invalidate it
+     *
+     * @param  string $file Complete file path
+     * @return boolean True if ok
+     */
+    protected function _remove($file)
+    {
+        if (!is_file($file)) {
+            return false;
+        }
+        if (!@unlink($file)) {
+            # we can't remove the file (because of locks or any problem)
+            $this->_log("Zend_Cache_Backend_File::_remove() : we can't remove $file");
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Clean some cache records (protected method used for recursive stuff)
+     *
+     * Available modes are :
+     * Zend_Cache::CLEANING_MODE_ALL (default)    => remove all cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_OLD              => remove too old cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_MATCHING_TAG     => remove cache entries matching all given tags
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => remove cache entries not {matching one of the given tags}
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG => remove cache entries matching any given tags
+     *                                               ($tags can be an array of strings or a single string)
+     *
+     * @param  string $dir  Directory to clean
+     * @param  string $mode Clean mode
+     * @param  array  $tags Array of tags
+     * @throws Zend_Cache_Exception
+     * @return boolean True if no problem
+     */
+    protected function _clean($dir, $mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        if (!is_dir($dir)) {
+            return false;
+        }
+        $result = true;
+        $prefix = $this->_options['file_name_prefix'];
+        $glob = @glob($dir . $prefix . '--*');
+        if ($glob === false) {
+            // On some systems it is impossible to distinguish between empty match and an error.
+            return true;
+        }
+        $metadataFiles = array();
+        foreach ($glob as $file)  {
+            if (is_file($file)) {
+                $fileName = basename($file);
+                if ($this->_isMetadatasFile($fileName)) {
+                    // In CLEANING_MODE_ALL, we drop anything, even remainings old metadatas files.
+                    // To do that, we need to save the list of the metadata files first.
+                    if ($mode == Zend_Cache::CLEANING_MODE_ALL) {
+                        $metadataFiles[] = $file;
+                    }
+                    continue;
+                }
+                $id = $this->_fileNameToId($fileName);
+                $metadatas = $this->_getMetadatas($id);
+                if ($metadatas === FALSE) {
+                    $metadatas = array('expire' => 1, 'tags' => array());
+                }
+                switch ($mode) {
+                    case Zend_Cache::CLEANING_MODE_ALL:
+                        $result = $result && $this->remove($id);
+                        break;
+                    case Zend_Cache::CLEANING_MODE_OLD:
+                        if (time() > $metadatas['expire']) {
+                            $result = $this->remove($id) && $result;
+                        }
+                        break;
+                    case Zend_Cache::CLEANING_MODE_MATCHING_TAG:
+                        $matching = true;
+                        foreach ($tags as $tag) {
+                            if (!in_array($tag, $metadatas['tags'])) {
+                                $matching = false;
+                                break;
+                            }
+                        }
+                        if ($matching) {
+                            $result = $this->remove($id) && $result;
+                        }
+                        break;
+                    case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG:
+                        $matching = false;
+                        foreach ($tags as $tag) {
+                            if (in_array($tag, $metadatas['tags'])) {
+                                $matching = true;
+                                break;
+                            }
+                        }
+                        if (!$matching) {
+                            $result = $this->remove($id) && $result;
+                        }
+                        break;
+                    case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG:
+                        $matching = false;
+                        foreach ($tags as $tag) {
+                            if (in_array($tag, $metadatas['tags'])) {
+                                $matching = true;
+                                break;
+                            }
+                        }
+                        if ($matching) {
+                            $result = $this->remove($id) && $result;
+                        }
+                        break;
+                    default:
+                        Zend_Cache::throwException('Invalid mode for clean() method');
+                        break;
+                }
+            }
+            if ((is_dir($file)) and ($this->_options['hashed_directory_level']>0)) {
+                // Recursive call
+                $result = $this->_clean($file . DIRECTORY_SEPARATOR, $mode, $tags) && $result;
+                if ($mode == Zend_Cache::CLEANING_MODE_ALL) {
+                    // we try to drop the structure too
+                    @rmdir($file);
+                }
+            }
+        }
+
+        // cycle through metadataFiles and delete orphaned ones
+        foreach ($metadataFiles as $file) {
+            if (file_exists($file)) {
+                $result = $this->_remove($file) && $result;
+            }
+        }
+
+        return $result;
+    }
+
+    protected function _get($dir, $mode, $tags = array())
+    {
+        if (!is_dir($dir)) {
+            return false;
+        }
+        $result = array();
+        $prefix = $this->_options['file_name_prefix'];
+        $glob = @glob($dir . $prefix . '--*');
+        if ($glob === false) {
+            // On some systems it is impossible to distinguish between empty match and an error.
+            return array();
+        }
+        foreach ($glob as $file)  {
+            if (is_file($file)) {
+                $fileName = basename($file);
+                $id = $this->_fileNameToId($fileName);
+                $metadatas = $this->_getMetadatas($id);
+                if ($metadatas === FALSE) {
+                    continue;
+                }
+                if (time() > $metadatas['expire']) {
+                    continue;
+                }
+                switch ($mode) {
+                    case 'ids':
+                        $result[] = $id;
+                        break;
+                    case 'tags':
+                        $result = array_unique(array_merge($result, $metadatas['tags']));
+                        break;
+                    case 'matching':
+                        $matching = true;
+                        foreach ($tags as $tag) {
+                            if (!in_array($tag, $metadatas['tags'])) {
+                                $matching = false;
+                                break;
+                            }
+                        }
+                        if ($matching) {
+                            $result[] = $id;
+                        }
+                        break;
+                    case 'notMatching':
+                        $matching = false;
+                        foreach ($tags as $tag) {
+                            if (in_array($tag, $metadatas['tags'])) {
+                                $matching = true;
+                                break;
+                            }
+                        }
+                        if (!$matching) {
+                            $result[] = $id;
+                        }
+                        break;
+                    case 'matchingAny':
+                        $matching = false;
+                        foreach ($tags as $tag) {
+                            if (in_array($tag, $metadatas['tags'])) {
+                                $matching = true;
+                                break;
+                            }
+                        }
+                        if ($matching) {
+                            $result[] = $id;
+                        }
+                        break;
+                    default:
+                        Zend_Cache::throwException('Invalid mode for _get() method');
+                        break;
+                }
+            }
+            if ((is_dir($file)) and ($this->_options['hashed_directory_level']>0)) {
+                // Recursive call
+                $recursiveRs =  $this->_get($file . DIRECTORY_SEPARATOR, $mode, $tags);
+                if ($recursiveRs === false) {
+                    $this->_log('Zend_Cache_Backend_File::_get() / recursive call : can\'t list entries of "'.$file.'"');
+                } else {
+                    $result = array_unique(array_merge($result, $recursiveRs));
+                }
+            }
+        }
+        return array_unique($result);
+    }
+
+    /**
+     * Compute & return the expire time
+     *
+     * @param  int $lifetime
+     * @return int expire time (unix timestamp)
+     */
+    protected function _expireTime($lifetime)
+    {
+        if ($lifetime === null) {
+            return 9999999999;
+        }
+        return time() + $lifetime;
+    }
+
+    /**
+     * Make a control key with the string containing datas
+     *
+     * @param  string $data        Data
+     * @param  string $controlType Type of control 'md5', 'crc32' or 'strlen'
+     * @throws Zend_Cache_Exception
+     * @return string Control key
+     */
+    protected function _hash($data, $controlType)
+    {
+        switch ($controlType) {
+        case 'md5':
+            return md5($data);
+        case 'crc32':
+            return crc32($data);
+        case 'strlen':
+            return strlen($data);
+        case 'adler32':
+            return hash('adler32', $data);
+        default:
+            Zend_Cache::throwException("Incorrect hash function : $controlType");
+        }
+    }
+
+    /**
+     * Transform a cache id into a file name and return it
+     *
+     * @param  string $id Cache id
+     * @return string File name
+     */
+    protected function _idToFileName($id)
+    {
+        $prefix = $this->_options['file_name_prefix'];
+        $result = $prefix . '---' . $id;
+        return $result;
+    }
+
+    /**
+     * Make and return a file name (with path)
+     *
+     * @param  string $id Cache id
+     * @return string File name (with path)
+     */
+    protected function _file($id)
+    {
+        $path = $this->_path($id);
+        $fileName = $this->_idToFileName($id);
+        return $path . $fileName;
+    }
+
+    /**
+     * Return the complete directory path of a filename (including hashedDirectoryStructure)
+     *
+     * @param  string $id Cache id
+     * @param  boolean $parts if true, returns array of directory parts instead of single string
+     * @return string Complete directory path
+     */
+    protected function _path($id, $parts = false)
+    {
+        $partsArray = array();
+        $root = $this->_options['cache_dir'];
+        $prefix = $this->_options['file_name_prefix'];
+        if ($this->_options['hashed_directory_level']>0) {
+            $hash = hash('adler32', $id);
+            for ($i=0 ; $i < $this->_options['hashed_directory_level'] ; $i++) {
+                $root = $root . $prefix . '--' . substr($hash, 0, $i + 1) . DIRECTORY_SEPARATOR;
+                $partsArray[] = $root;
+            }
+        }
+        if ($parts) {
+            return $partsArray;
+        } else {
+            return $root;
+        }
+    }
+
+    /**
+     * Make the directory strucuture for the given id
+     *
+     * @param string $id cache id
+     * @return boolean true
+     */
+    protected function _recursiveMkdirAndChmod($id)
+    {
+        if ($this->_options['hashed_directory_level'] <=0) {
+            return true;
+        }
+        $partsArray = $this->_path($id, true);
+        foreach ($partsArray as $part) {
+            if (!is_dir($part)) {
+                @mkdir($part, $this->_options['hashed_directory_perm']);
+                @chmod($part, $this->_options['hashed_directory_perm']); // see #ZF-320 (this line is required in some configurations)
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Test if the given cache id is available (and still valid as a cache record)
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @return boolean|mixed false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    protected function _test($id, $doNotTestCacheValidity)
+    {
+        $metadatas = $this->_getMetadatas($id);
+        if (!$metadatas) {
+            return false;
+        }
+        if ($doNotTestCacheValidity || (time() <= $metadatas['expire'])) {
+            return $metadatas['mtime'];
+        }
+        return false;
+    }
+
+    /**
+     * Return the file content of the given file
+     *
+     * @param  string $file File complete path
+     * @return string File content (or false if problem)
+     */
+    protected function _fileGetContents($file)
+    {
+        $result = false;
+        if (!is_file($file)) {
+            return false;
+        }
+        $f = @fopen($file, 'rb');
+        if ($f) {
+            if ($this->_options['file_locking']) @flock($f, LOCK_SH);
+            $result = stream_get_contents($f);
+            if ($this->_options['file_locking']) @flock($f, LOCK_UN);
+            @fclose($f);
+        }
+        return $result;
+    }
+
+    /**
+     * Put the given string into the given file
+     *
+     * @param  string $file   File complete path
+     * @param  string $string String to put in file
+     * @return boolean true if no problem
+     */
+    protected function _filePutContents($file, $string)
+    {
+        $result = false;
+        $f = @fopen($file, 'ab+');
+        if ($f) {
+            if ($this->_options['file_locking']) @flock($f, LOCK_EX);
+            fseek($f, 0);
+            ftruncate($f, 0);
+            $tmp = @fwrite($f, $string);
+            if (!($tmp === FALSE)) {
+                $result = true;
+            }
+            @fclose($f);
+        }
+        @chmod($file, $this->_options['cache_file_perm']);
+        return $result;
+    }
+
+    /**
+     * Transform a file name into cache id and return it
+     *
+     * @param  string $fileName File name
+     * @return string Cache id
+     */
+    protected function _fileNameToId($fileName)
+    {
+        $prefix = $this->_options['file_name_prefix'];
+        return preg_replace('~^' . $prefix . '---(.*)$~', '$1', $fileName);
+    }
+
+}
diff --git a/library/vendor/Zend/Cache/Backend/Interface.php b/library/vendor/Zend/Cache/Backend/Interface.php
new file mode 100644
index 0000000..1bd72d8
--- /dev/null
+++ b/library/vendor/Zend/Cache/Backend/Interface.php
@@ -0,0 +1,99 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+interface Zend_Cache_Backend_Interface
+{
+    /**
+     * Set the frontend directives
+     *
+     * @param array $directives assoc of directives
+     */
+    public function setDirectives($directives);
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * Note : return value is always "string" (unserialization is done by the core not by the backend)
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @return string|false cached datas
+     */
+    public function load($id, $doNotTestCacheValidity = false);
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param  string $id cache id
+     * @return mixed|false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id);
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param  string $data            Datas to cache
+     * @param  string $id              Cache id
+     * @param  array $tags             Array of strings, the cache record will be tagged by each string entry
+     * @param  int   $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean true if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false);
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id Cache id
+     * @return boolean True if no problem
+     */
+    public function remove($id);
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * Zend_Cache::CLEANING_MODE_ALL (default)    => remove all cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_OLD              => remove too old cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_MATCHING_TAG     => remove cache entries matching all given tags
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => remove cache entries not {matching one of the given tags}
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG => remove cache entries matching any given tags
+     *                                               ($tags can be an array of strings or a single string)
+     *
+     * @param  string $mode Clean mode
+     * @param  array  $tags Array of tags
+     * @return boolean true if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array());
+
+}
diff --git a/library/vendor/Zend/Cache/Backend/Libmemcached.php b/library/vendor/Zend/Cache/Backend/Libmemcached.php
new file mode 100644
index 0000000..ca1f695
--- /dev/null
+++ b/library/vendor/Zend/Cache/Backend/Libmemcached.php
@@ -0,0 +1,482 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+
+/**
+ * @see Zend_Cache_Backend
+ */
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_Libmemcached extends Zend_Cache_Backend implements Zend_Cache_Backend_ExtendedInterface
+{
+    /**
+     * Default Server Values
+     */
+    const DEFAULT_HOST = '127.0.0.1';
+    const DEFAULT_PORT =  11211;
+    const DEFAULT_WEIGHT  = 1;
+
+    /**
+     * Log message
+     */
+    const TAGS_UNSUPPORTED_BY_CLEAN_OF_LIBMEMCACHED_BACKEND = 'Zend_Cache_Backend_Libmemcached::clean() : tags are unsupported by the Libmemcached backend';
+    const TAGS_UNSUPPORTED_BY_SAVE_OF_LIBMEMCACHED_BACKEND =  'Zend_Cache_Backend_Libmemcached::save() : tags are unsupported by the Libmemcached backend';
+
+    /**
+     * Available options
+     *
+     * =====> (array) servers :
+     * an array of memcached server ; each memcached server is described by an associative array :
+     * 'host' => (string) : the name of the memcached server
+     * 'port' => (int) : the port of the memcached server
+     * 'weight' => (int) : number of buckets to create for this server which in turn control its
+     *                     probability of it being selected. The probability is relative to the total
+     *                     weight of all servers.
+     * =====> (array) client :
+     * an array of memcached client options ; the memcached client is described by an associative array :
+     * @see http://php.net/manual/memcached.constants.php
+     * - The option name can be the name of the constant without the prefix 'OPT_'
+     *   or the integer value of this option constant
+     *
+     * @var array available options
+     */
+    protected $_options = array(
+        'servers' => array(array(
+            'host'   => self::DEFAULT_HOST,
+            'port'   => self::DEFAULT_PORT,
+            'weight' => self::DEFAULT_WEIGHT,
+        )),
+        'client' => array()
+    );
+
+    /**
+     * Memcached object
+     *
+     * @var mixed memcached object
+     */
+    protected $_memcache = null;
+
+    /**
+     * Constructor
+     *
+     * @param array $options associative array of options
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        if (!extension_loaded('memcached')) {
+            Zend_Cache::throwException('The memcached extension must be loaded for using this backend !');
+        }
+
+        // override default client options
+        $this->_options['client'] = array(
+            Memcached::OPT_DISTRIBUTION         => Memcached::DISTRIBUTION_CONSISTENT,
+            Memcached::OPT_HASH                 => Memcached::HASH_MD5,
+            Memcached::OPT_LIBKETAMA_COMPATIBLE => true,
+        );
+
+        parent::__construct($options);
+
+        if (isset($this->_options['servers'])) {
+            $value = $this->_options['servers'];
+            if (isset($value['host'])) {
+                // in this case, $value seems to be a simple associative array (one server only)
+                $value = array(0 => $value); // let's transform it into a classical array of associative arrays
+            }
+            $this->setOption('servers', $value);
+        }
+        $this->_memcache = new Memcached;
+
+        // setup memcached client options
+        foreach ($this->_options['client'] as $name => $value) {
+            $optId = null;
+            if (is_int($name)) {
+                $optId = $name;
+            } else {
+                $optConst = 'Memcached::OPT_' . strtoupper($name);
+                if (defined($optConst)) {
+                    $optId = constant($optConst);
+                } else {
+                    $this->_log("Unknown memcached client option '{$name}' ({$optConst})");
+                }
+            }
+            if (null !== $optId) {
+                if (!$this->_memcache->setOption($optId, $value)) {
+                    $this->_log("Setting memcached client option '{$optId}' failed");
+                }
+            }
+        }
+
+        // setup memcached servers
+        $servers = array();
+        foreach ($this->_options['servers'] as $server) {
+            if (!array_key_exists('port', $server)) {
+                $server['port'] = self::DEFAULT_PORT;
+            }
+            if (!array_key_exists('weight', $server)) {
+                $server['weight'] = self::DEFAULT_WEIGHT;
+            }
+
+            $servers[] = array($server['host'], $server['port'], $server['weight']);
+        }
+        $this->_memcache->addServers($servers);
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @return string|false cached datas
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        $tmp = $this->_memcache->get($id);
+        if (isset($tmp[0])) {
+            return $tmp[0];
+        }
+        return false;
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param  string $id Cache id
+     * @return int|false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id)
+    {
+        $tmp = $this->_memcache->get($id);
+        if (isset($tmp[0], $tmp[1])) {
+            return (int)$tmp[1];
+        }
+        return false;
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param  string $data             Datas to cache
+     * @param  string $id               Cache id
+     * @param  array  $tags             Array of strings, the cache record will be tagged by each string entry
+     * @param  int    $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean True if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        $lifetime = $this->getLifetime($specificLifetime);
+
+        // ZF-8856: using set because add needs a second request if item already exists
+        $result = @$this->_memcache->set($id, array($data, time(), $lifetime), $lifetime);
+        if ($result === false) {
+            $rsCode = $this->_memcache->getResultCode();
+            $rsMsg  = $this->_memcache->getResultMessage();
+            $this->_log("Memcached::set() failed: [{$rsCode}] {$rsMsg}");
+        }
+
+        if (count($tags) > 0) {
+            $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_LIBMEMCACHED_BACKEND);
+        }
+
+        return $result;
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id Cache id
+     * @return boolean True if no problem
+     */
+    public function remove($id)
+    {
+        return $this->_memcache->delete($id);
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * 'all' (default)  => remove all cache entries ($tags is not used)
+     * 'old'            => unsupported
+     * 'matchingTag'    => unsupported
+     * 'notMatchingTag' => unsupported
+     * 'matchingAnyTag' => unsupported
+     *
+     * @param  string $mode Clean mode
+     * @param  array  $tags Array of tags
+     * @throws Zend_Cache_Exception
+     * @return boolean True if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        switch ($mode) {
+            case Zend_Cache::CLEANING_MODE_ALL:
+                return $this->_memcache->flush();
+                break;
+            case Zend_Cache::CLEANING_MODE_OLD:
+                $this->_log("Zend_Cache_Backend_Libmemcached::clean() : CLEANING_MODE_OLD is unsupported by the Libmemcached backend");
+                break;
+            case Zend_Cache::CLEANING_MODE_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG:
+                $this->_log(self::TAGS_UNSUPPORTED_BY_CLEAN_OF_LIBMEMCACHED_BACKEND);
+                break;
+               default:
+                Zend_Cache::throwException('Invalid mode for clean() method');
+                   break;
+        }
+    }
+
+    /**
+     * Return true if the automatic cleaning is available for the backend
+     *
+     * @return boolean
+     */
+    public function isAutomaticCleaningAvailable()
+    {
+        return false;
+    }
+
+    /**
+     * Set the frontend directives
+     *
+     * @param  array $directives Assoc of directives
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function setDirectives($directives)
+    {
+        parent::setDirectives($directives);
+        $lifetime = $this->getLifetime(false);
+        if ($lifetime > 2592000) {
+            // #ZF-3490 : For the memcached backend, there is a lifetime limit of 30 days (2592000 seconds)
+            $this->_log('memcached backend has a limit of 30 days (2592000 seconds) for the lifetime');
+        }
+        if ($lifetime === null) {
+            // #ZF-4614 : we tranform null to zero to get the maximal lifetime
+            parent::setDirectives(array('lifetime' => 0));
+        }
+    }
+
+    /**
+     * Return an array of stored cache ids
+     *
+     * @return array array of stored cache ids (string)
+     */
+    public function getIds()
+    {
+        $this->_log("Zend_Cache_Backend_Libmemcached::save() : getting the list of cache ids is unsupported by the Libmemcached backend");
+        return array();
+    }
+
+    /**
+     * Return an array of stored tags
+     *
+     * @return array array of stored tags (string)
+     */
+    public function getTags()
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_LIBMEMCACHED_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which match given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching cache ids (string)
+     */
+    public function getIdsMatchingTags($tags = array())
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_LIBMEMCACHED_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which don't match given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of not matching cache ids (string)
+     */
+    public function getIdsNotMatchingTags($tags = array())
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_LIBMEMCACHED_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which match any given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of any matching cache ids (string)
+     */
+    public function getIdsMatchingAnyTags($tags = array())
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_LIBMEMCACHED_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return the filling percentage of the backend storage
+     *
+     * @throws Zend_Cache_Exception
+     * @return int integer between 0 and 100
+     */
+    public function getFillingPercentage()
+    {
+        $mems = $this->_memcache->getStats();
+        if ($mems === false) {
+            return 0;
+        }
+
+        $memSize = null;
+        $memUsed = null;
+        foreach ($mems as $key => $mem) {
+            if ($mem === false) {
+                $this->_log('can\'t get stat from ' . $key);
+                continue;
+            }
+
+            $eachSize = $mem['limit_maxbytes'];
+            $eachUsed = $mem['bytes'];
+            if ($eachUsed > $eachSize) {
+                $eachUsed = $eachSize;
+            }
+
+            $memSize += $eachSize;
+            $memUsed += $eachUsed;
+        }
+
+        if ($memSize === null || $memUsed === null) {
+            Zend_Cache::throwException('Can\'t get filling percentage');
+        }
+
+        return ((int) (100. * ($memUsed / $memSize)));
+    }
+
+    /**
+     * Return an array of metadatas for the given cache id
+     *
+     * The array must include these keys :
+     * - expire : the expire timestamp
+     * - tags : a string array of tags
+     * - mtime : timestamp of last modification time
+     *
+     * @param string $id cache id
+     * @return array array of metadatas (false if the cache id is not found)
+     */
+    public function getMetadatas($id)
+    {
+        $tmp = $this->_memcache->get($id);
+        if (isset($tmp[0], $tmp[1], $tmp[2])) {
+            $data     = $tmp[0];
+            $mtime    = $tmp[1];
+            $lifetime = $tmp[2];
+            return array(
+                'expire' => $mtime + $lifetime,
+                'tags' => array(),
+                'mtime' => $mtime
+            );
+        }
+
+        return false;
+    }
+
+    /**
+     * Give (if possible) an extra lifetime to the given cache id
+     *
+     * @param string $id cache id
+     * @param int $extraLifetime
+     * @return boolean true if ok
+     */
+    public function touch($id, $extraLifetime)
+    {
+        $tmp = $this->_memcache->get($id);
+        if (isset($tmp[0], $tmp[1], $tmp[2])) {
+            $data     = $tmp[0];
+            $mtime    = $tmp[1];
+            $lifetime = $tmp[2];
+            $newLifetime = $lifetime - (time() - $mtime) + $extraLifetime;
+            if ($newLifetime <=0) {
+                return false;
+            }
+            // #ZF-5702 : we try replace() first becase set() seems to be slower
+            if (!($result = $this->_memcache->replace($id, array($data, time(), $newLifetime), $newLifetime))) {
+                $result = $this->_memcache->set($id, array($data, time(), $newLifetime), $newLifetime);
+                if ($result === false) {
+                    $rsCode = $this->_memcache->getResultCode();
+                    $rsMsg  = $this->_memcache->getResultMessage();
+                    $this->_log("Memcached::set() failed: [{$rsCode}] {$rsMsg}");
+                }
+            }
+            return $result;
+        }
+        return false;
+    }
+
+    /**
+     * Return an associative array of capabilities (booleans) of the backend
+     *
+     * The array must include these keys :
+     * - automatic_cleaning (is automating cleaning necessary)
+     * - tags (are tags supported)
+     * - expired_read (is it possible to read expired cache records
+     *                 (for doNotTestCacheValidity option for example))
+     * - priority does the backend deal with priority when saving
+     * - infinite_lifetime (is infinite lifetime can work with this backend)
+     * - get_list (is it possible to get the list of cache ids and the complete list of tags)
+     *
+     * @return array associative of with capabilities
+     */
+    public function getCapabilities()
+    {
+        return array(
+            'automatic_cleaning' => false,
+            'tags' => false,
+            'expired_read' => false,
+            'priority' => false,
+            'infinite_lifetime' => false,
+            'get_list' => false
+        );
+    }
+
+}
diff --git a/library/vendor/Zend/Cache/Backend/Memcached.php b/library/vendor/Zend/Cache/Backend/Memcached.php
new file mode 100644
index 0000000..61ddfdc
--- /dev/null
+++ b/library/vendor/Zend/Cache/Backend/Memcached.php
@@ -0,0 +1,507 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+
+/**
+ * @see Zend_Cache_Backend
+ */
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_Memcached extends Zend_Cache_Backend implements Zend_Cache_Backend_ExtendedInterface
+{
+    /**
+     * Default Values
+     */
+    const DEFAULT_HOST = '127.0.0.1';
+    const DEFAULT_PORT =  11211;
+    const DEFAULT_PERSISTENT = true;
+    const DEFAULT_WEIGHT  = 1;
+    const DEFAULT_TIMEOUT = 1;
+    const DEFAULT_RETRY_INTERVAL = 15;
+    const DEFAULT_STATUS = true;
+    const DEFAULT_FAILURE_CALLBACK = null;
+
+    /**
+     * Log message
+     */
+    const TAGS_UNSUPPORTED_BY_CLEAN_OF_MEMCACHED_BACKEND = 'Zend_Cache_Backend_Memcached::clean() : tags are unsupported by the Memcached backend';
+    const TAGS_UNSUPPORTED_BY_SAVE_OF_MEMCACHED_BACKEND =  'Zend_Cache_Backend_Memcached::save() : tags are unsupported by the Memcached backend';
+
+    /**
+     * Available options
+     *
+     * =====> (array) servers :
+     * an array of memcached server ; each memcached server is described by an associative array :
+     * 'host' => (string) : the name of the memcached server
+     * 'port' => (int) : the port of the memcached server
+     * 'persistent' => (bool) : use or not persistent connections to this memcached server
+     * 'weight' => (int) : number of buckets to create for this server which in turn control its
+     *                     probability of it being selected. The probability is relative to the total
+     *                     weight of all servers.
+     * 'timeout' => (int) : value in seconds which will be used for connecting to the daemon. Think twice
+     *                      before changing the default value of 1 second - you can lose all the
+     *                      advantages of caching if your connection is too slow.
+     * 'retry_interval' => (int) : controls how often a failed server will be retried, the default value
+     *                             is 15 seconds. Setting this parameter to -1 disables automatic retry.
+     * 'status' => (bool) : controls if the server should be flagged as online.
+     * 'failure_callback' => (callback) : Allows the user to specify a callback function to run upon
+     *                                    encountering an error. The callback is run before failover
+     *                                    is attempted. The function takes two parameters, the hostname
+     *                                    and port of the failed server.
+     *
+     * =====> (boolean) compression :
+     * true if you want to use on-the-fly compression
+     *
+     * =====> (boolean) compatibility :
+     * true if you use old memcache server or extension
+     *
+     * @var array available options
+     */
+    protected $_options = array(
+        'servers' => array(array(
+            'host' => self::DEFAULT_HOST,
+            'port' => self::DEFAULT_PORT,
+            'persistent' => self::DEFAULT_PERSISTENT,
+            'weight'  => self::DEFAULT_WEIGHT,
+            'timeout' => self::DEFAULT_TIMEOUT,
+            'retry_interval' => self::DEFAULT_RETRY_INTERVAL,
+            'status' => self::DEFAULT_STATUS,
+            'failure_callback' => self::DEFAULT_FAILURE_CALLBACK
+        )),
+        'compression' => false,
+        'compatibility' => false,
+    );
+
+    /**
+     * Memcache object
+     *
+     * @var mixed memcache object
+     */
+    protected $_memcache = null;
+
+    /**
+     * Constructor
+     *
+     * @param array $options associative array of options
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        if (!extension_loaded('memcache')) {
+            Zend_Cache::throwException('The memcache extension must be loaded for using this backend !');
+        }
+        parent::__construct($options);
+        if (isset($this->_options['servers'])) {
+            $value= $this->_options['servers'];
+            if (isset($value['host'])) {
+                // in this case, $value seems to be a simple associative array (one server only)
+                $value = array(0 => $value); // let's transform it into a classical array of associative arrays
+            }
+            $this->setOption('servers', $value);
+        }
+        $this->_memcache = new Memcache;
+        foreach ($this->_options['servers'] as $server) {
+            if (!array_key_exists('port', $server)) {
+                $server['port'] = self::DEFAULT_PORT;
+            }
+            if (!array_key_exists('persistent', $server)) {
+                $server['persistent'] = self::DEFAULT_PERSISTENT;
+            }
+            if (!array_key_exists('weight', $server)) {
+                $server['weight'] = self::DEFAULT_WEIGHT;
+            }
+            if (!array_key_exists('timeout', $server)) {
+                $server['timeout'] = self::DEFAULT_TIMEOUT;
+            }
+            if (!array_key_exists('retry_interval', $server)) {
+                $server['retry_interval'] = self::DEFAULT_RETRY_INTERVAL;
+            }
+            if (!array_key_exists('status', $server)) {
+                $server['status'] = self::DEFAULT_STATUS;
+            }
+            if (!array_key_exists('failure_callback', $server)) {
+                $server['failure_callback'] = self::DEFAULT_FAILURE_CALLBACK;
+            }
+            if ($this->_options['compatibility']) {
+                // No status for compatibility mode (#ZF-5887)
+                $this->_memcache->addServer($server['host'], $server['port'], $server['persistent'],
+                                        $server['weight'], $server['timeout'],
+                                        $server['retry_interval']);
+            } else {
+                $this->_memcache->addServer($server['host'], $server['port'], $server['persistent'],
+                                        $server['weight'], $server['timeout'],
+                                        $server['retry_interval'],
+                                        $server['status'], $server['failure_callback']);
+            }
+        }
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @return string|false cached datas
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        $tmp = $this->_memcache->get($id);
+        if (is_array($tmp) && isset($tmp[0])) {
+            return $tmp[0];
+        }
+        return false;
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param  string $id Cache id
+     * @return mixed|false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id)
+    {
+        $tmp = $this->_memcache->get($id);
+        if (is_array($tmp)) {
+            return $tmp[1];
+        }
+        return false;
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param  string $data             Datas to cache
+     * @param  string $id               Cache id
+     * @param  array  $tags             Array of strings, the cache record will be tagged by each string entry
+     * @param  int    $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean True if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        $lifetime = $this->getLifetime($specificLifetime);
+        if ($this->_options['compression']) {
+            $flag = MEMCACHE_COMPRESSED;
+        } else {
+            $flag = 0;
+        }
+
+        // ZF-8856: using set because add needs a second request if item already exists
+        $result = @$this->_memcache->set($id, array($data, time(), $lifetime), $flag, $lifetime);
+
+        if (count($tags) > 0) {
+            $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_MEMCACHED_BACKEND);
+        }
+
+        return $result;
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id Cache id
+     * @return boolean True if no problem
+     */
+    public function remove($id)
+    {
+        return $this->_memcache->delete($id, 0);
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * 'all' (default)  => remove all cache entries ($tags is not used)
+     * 'old'            => unsupported
+     * 'matchingTag'    => unsupported
+     * 'notMatchingTag' => unsupported
+     * 'matchingAnyTag' => unsupported
+     *
+     * @param  string $mode Clean mode
+     * @param  array  $tags Array of tags
+     * @throws Zend_Cache_Exception
+     * @return boolean True if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        switch ($mode) {
+            case Zend_Cache::CLEANING_MODE_ALL:
+                return $this->_memcache->flush();
+                break;
+            case Zend_Cache::CLEANING_MODE_OLD:
+                $this->_log("Zend_Cache_Backend_Memcached::clean() : CLEANING_MODE_OLD is unsupported by the Memcached backend");
+                break;
+            case Zend_Cache::CLEANING_MODE_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG:
+                $this->_log(self::TAGS_UNSUPPORTED_BY_CLEAN_OF_MEMCACHED_BACKEND);
+                break;
+               default:
+                Zend_Cache::throwException('Invalid mode for clean() method');
+                   break;
+        }
+    }
+
+    /**
+     * Return true if the automatic cleaning is available for the backend
+     *
+     * @return boolean
+     */
+    public function isAutomaticCleaningAvailable()
+    {
+        return false;
+    }
+
+    /**
+     * Set the frontend directives
+     *
+     * @param  array $directives Assoc of directives
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function setDirectives($directives)
+    {
+        parent::setDirectives($directives);
+        $lifetime = $this->getLifetime(false);
+        if ($lifetime > 2592000) {
+            // #ZF-3490 : For the memcached backend, there is a lifetime limit of 30 days (2592000 seconds)
+            $this->_log('memcached backend has a limit of 30 days (2592000 seconds) for the lifetime');
+        }
+        if ($lifetime === null) {
+            // #ZF-4614 : we tranform null to zero to get the maximal lifetime
+            parent::setDirectives(array('lifetime' => 0));
+        }
+    }
+
+    /**
+     * Return an array of stored cache ids
+     *
+     * @return array array of stored cache ids (string)
+     */
+    public function getIds()
+    {
+        $this->_log("Zend_Cache_Backend_Memcached::save() : getting the list of cache ids is unsupported by the Memcache backend");
+        return array();
+    }
+
+    /**
+     * Return an array of stored tags
+     *
+     * @return array array of stored tags (string)
+     */
+    public function getTags()
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_MEMCACHED_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which match given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching cache ids (string)
+     */
+    public function getIdsMatchingTags($tags = array())
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_MEMCACHED_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which don't match given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of not matching cache ids (string)
+     */
+    public function getIdsNotMatchingTags($tags = array())
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_MEMCACHED_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which match any given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of any matching cache ids (string)
+     */
+    public function getIdsMatchingAnyTags($tags = array())
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_MEMCACHED_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return the filling percentage of the backend storage
+     *
+     * @throws Zend_Cache_Exception
+     * @return int integer between 0 and 100
+     */
+    public function getFillingPercentage()
+    {
+        $mems = $this->_memcache->getExtendedStats();
+
+        $memSize = null;
+        $memUsed = null;
+        foreach ($mems as $key => $mem) {
+            if ($mem === false) {
+                $this->_log('can\'t get stat from ' . $key);
+                continue;
+            }
+
+            $eachSize = $mem['limit_maxbytes'];
+
+            /**
+             * Couchbase 1.x uses 'mem_used' instead of 'bytes'
+             * @see https://www.couchbase.com/issues/browse/MB-3466
+             */
+            $eachUsed = isset($mem['bytes']) ? $mem['bytes'] : $mem['mem_used'];
+            if ($eachUsed > $eachSize) {
+                $eachUsed = $eachSize;
+            }
+
+            $memSize += $eachSize;
+            $memUsed += $eachUsed;
+        }
+
+        if ($memSize === null || $memUsed === null) {
+            Zend_Cache::throwException('Can\'t get filling percentage');
+        }
+
+        return ((int) (100. * ($memUsed / $memSize)));
+    }
+
+    /**
+     * Return an array of metadatas for the given cache id
+     *
+     * The array must include these keys :
+     * - expire : the expire timestamp
+     * - tags : a string array of tags
+     * - mtime : timestamp of last modification time
+     *
+     * @param string $id cache id
+     * @return array array of metadatas (false if the cache id is not found)
+     */
+    public function getMetadatas($id)
+    {
+        $tmp = $this->_memcache->get($id);
+        if (is_array($tmp)) {
+            $data = $tmp[0];
+            $mtime = $tmp[1];
+            if (!isset($tmp[2])) {
+                // because this record is only with 1.7 release
+                // if old cache records are still there...
+                return false;
+            }
+            $lifetime = $tmp[2];
+            return array(
+                'expire' => $mtime + $lifetime,
+                'tags' => array(),
+                'mtime' => $mtime
+            );
+        }
+        return false;
+    }
+
+    /**
+     * Give (if possible) an extra lifetime to the given cache id
+     *
+     * @param string $id cache id
+     * @param int $extraLifetime
+     * @return boolean true if ok
+     */
+    public function touch($id, $extraLifetime)
+    {
+        if ($this->_options['compression']) {
+            $flag = MEMCACHE_COMPRESSED;
+        } else {
+            $flag = 0;
+        }
+        $tmp = $this->_memcache->get($id);
+        if (is_array($tmp)) {
+            $data = $tmp[0];
+            $mtime = $tmp[1];
+            if (!isset($tmp[2])) {
+                // because this record is only with 1.7 release
+                // if old cache records are still there...
+                return false;
+            }
+            $lifetime = $tmp[2];
+            $newLifetime = $lifetime - (time() - $mtime) + $extraLifetime;
+            if ($newLifetime <=0) {
+                return false;
+            }
+            // #ZF-5702 : we try replace() first becase set() seems to be slower
+            if (!($result = $this->_memcache->replace($id, array($data, time(), $newLifetime), $flag, $newLifetime))) {
+                $result = $this->_memcache->set($id, array($data, time(), $newLifetime), $flag, $newLifetime);
+            }
+            return $result;
+        }
+        return false;
+    }
+
+    /**
+     * Return an associative array of capabilities (booleans) of the backend
+     *
+     * The array must include these keys :
+     * - automatic_cleaning (is automating cleaning necessary)
+     * - tags (are tags supported)
+     * - expired_read (is it possible to read expired cache records
+     *                 (for doNotTestCacheValidity option for example))
+     * - priority does the backend deal with priority when saving
+     * - infinite_lifetime (is infinite lifetime can work with this backend)
+     * - get_list (is it possible to get the list of cache ids and the complete list of tags)
+     *
+     * @return array associative of with capabilities
+     */
+    public function getCapabilities()
+    {
+        return array(
+            'automatic_cleaning' => false,
+            'tags' => false,
+            'expired_read' => false,
+            'priority' => false,
+            'infinite_lifetime' => false,
+            'get_list' => false
+        );
+    }
+
+}
diff --git a/library/vendor/Zend/Cache/Backend/Sqlite.php b/library/vendor/Zend/Cache/Backend/Sqlite.php
new file mode 100644
index 0000000..fa6be7d
--- /dev/null
+++ b/library/vendor/Zend/Cache/Backend/Sqlite.php
@@ -0,0 +1,676 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+
+/**
+ * @see Zend_Cache_Backend
+ */
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_Sqlite extends Zend_Cache_Backend implements Zend_Cache_Backend_ExtendedInterface
+{
+    /**
+     * Available options
+     *
+     * =====> (string) cache_db_complete_path :
+     * - the complete path (filename included) of the SQLITE database
+     *
+     * ====> (int) automatic_vacuum_factor :
+     * - Disable / Tune the automatic vacuum process
+     * - The automatic vacuum process defragment the database file (and make it smaller)
+     *   when a clean() or delete() is called
+     *     0               => no automatic vacuum
+     *     1               => systematic vacuum (when delete() or clean() methods are called)
+     *     x (integer) > 1 => automatic vacuum randomly 1 times on x clean() or delete()
+     *
+     * @var array Available options
+     */
+    protected $_options = array(
+        'cache_db_complete_path' => null,
+        'automatic_vacuum_factor' => 10
+    );
+
+    /**
+     * DB ressource
+     *
+     * @var mixed $_db
+     */
+    private $_db = null;
+
+    /**
+     * Boolean to store if the structure has benn checked or not
+     *
+     * @var boolean $_structureChecked
+     */
+    private $_structureChecked = false;
+
+    /**
+     * Constructor
+     *
+     * @param  array $options Associative array of options
+     * @throws Zend_cache_Exception
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        parent::__construct($options);
+        if ($this->_options['cache_db_complete_path'] === null) {
+            Zend_Cache::throwException('cache_db_complete_path option has to set');
+        }
+        if (!extension_loaded('sqlite')) {
+            Zend_Cache::throwException("Cannot use SQLite storage because the 'sqlite' extension is not loaded in the current PHP environment");
+        }
+        $this->_getConnection();
+    }
+
+    /**
+     * Destructor
+     *
+     * @return void
+     */
+    public function __destruct()
+    {
+        @sqlite_close($this->_getConnection());
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @return string|false Cached datas
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        $this->_checkAndBuildStructure();
+        $sql = "SELECT content FROM cache WHERE id='$id'";
+        if (!$doNotTestCacheValidity) {
+            $sql = $sql . " AND (expire=0 OR expire>" . time() . ')';
+        }
+        $result = $this->_query($sql);
+        $row = @sqlite_fetch_array($result);
+        if ($row) {
+            return $row['content'];
+        }
+        return false;
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param string $id Cache id
+     * @return mixed|false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id)
+    {
+        $this->_checkAndBuildStructure();
+        $sql = "SELECT lastModified FROM cache WHERE id='$id' AND (expire=0 OR expire>" . time() . ')';
+        $result = $this->_query($sql);
+        $row = @sqlite_fetch_array($result);
+        if ($row) {
+            return ((int) $row['lastModified']);
+        }
+        return false;
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param  string $data             Datas to cache
+     * @param  string $id               Cache id
+     * @param  array  $tags             Array of strings, the cache record will be tagged by each string entry
+     * @param  int    $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @throws Zend_Cache_Exception
+     * @return boolean True if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        $this->_checkAndBuildStructure();
+        $lifetime = $this->getLifetime($specificLifetime);
+        $data = @sqlite_escape_string($data);
+        $mktime = time();
+        if ($lifetime === null) {
+            $expire = 0;
+        } else {
+            $expire = $mktime + $lifetime;
+        }
+        $this->_query("DELETE FROM cache WHERE id='$id'");
+        $sql = "INSERT INTO cache (id, content, lastModified, expire) VALUES ('$id', '$data', $mktime, $expire)";
+        $res = $this->_query($sql);
+        if (!$res) {
+            $this->_log("Zend_Cache_Backend_Sqlite::save() : impossible to store the cache id=$id");
+            return false;
+        }
+        $res = true;
+        foreach ($tags as $tag) {
+            $res = $this->_registerTag($id, $tag) && $res;
+        }
+        return $res;
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id Cache id
+     * @return boolean True if no problem
+     */
+    public function remove($id)
+    {
+        $this->_checkAndBuildStructure();
+        $res = $this->_query("SELECT COUNT(*) AS nbr FROM cache WHERE id='$id'");
+        $result1 = @sqlite_fetch_single($res);
+        $result2 = $this->_query("DELETE FROM cache WHERE id='$id'");
+        $result3 = $this->_query("DELETE FROM tag WHERE id='$id'");
+        $this->_automaticVacuum();
+        return ($result1 && $result2 && $result3);
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * Zend_Cache::CLEANING_MODE_ALL (default)    => remove all cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_OLD              => remove too old cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_MATCHING_TAG     => remove cache entries matching all given tags
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => remove cache entries not {matching one of the given tags}
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG => remove cache entries matching any given tags
+     *                                               ($tags can be an array of strings or a single string)
+     *
+     * @param  string $mode Clean mode
+     * @param  array  $tags Array of tags
+     * @return boolean True if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        $this->_checkAndBuildStructure();
+        $return = $this->_clean($mode, $tags);
+        $this->_automaticVacuum();
+        return $return;
+    }
+
+    /**
+     * Return an array of stored cache ids
+     *
+     * @return array array of stored cache ids (string)
+     */
+    public function getIds()
+    {
+        $this->_checkAndBuildStructure();
+        $res = $this->_query("SELECT id FROM cache WHERE (expire=0 OR expire>" . time() . ")");
+        $result = array();
+        while ($id = @sqlite_fetch_single($res)) {
+            $result[] = $id;
+        }
+        return $result;
+    }
+
+    /**
+     * Return an array of stored tags
+     *
+     * @return array array of stored tags (string)
+     */
+    public function getTags()
+    {
+        $this->_checkAndBuildStructure();
+        $res = $this->_query("SELECT DISTINCT(name) AS name FROM tag");
+        $result = array();
+        while ($id = @sqlite_fetch_single($res)) {
+            $result[] = $id;
+        }
+        return $result;
+    }
+
+    /**
+     * Return an array of stored cache ids which match given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching cache ids (string)
+     */
+    public function getIdsMatchingTags($tags = array())
+    {
+        $first = true;
+        $ids = array();
+        foreach ($tags as $tag) {
+            $res = $this->_query("SELECT DISTINCT(id) AS id FROM tag WHERE name='$tag'");
+            if (!$res) {
+                return array();
+            }
+            $rows = @sqlite_fetch_all($res, SQLITE_ASSOC);
+            $ids2 = array();
+            foreach ($rows as $row) {
+                $ids2[] = $row['id'];
+            }
+            if ($first) {
+                $ids = $ids2;
+                $first = false;
+            } else {
+                $ids = array_intersect($ids, $ids2);
+            }
+        }
+        $result = array();
+        foreach ($ids as $id) {
+            $result[] = $id;
+        }
+        return $result;
+    }
+
+    /**
+     * Return an array of stored cache ids which don't match given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of not matching cache ids (string)
+     */
+    public function getIdsNotMatchingTags($tags = array())
+    {
+        $res = $this->_query("SELECT id FROM cache");
+        $rows = @sqlite_fetch_all($res, SQLITE_ASSOC);
+        $result = array();
+        foreach ($rows as $row) {
+            $id = $row['id'];
+            $matching = false;
+            foreach ($tags as $tag) {
+                $res = $this->_query("SELECT COUNT(*) AS nbr FROM tag WHERE name='$tag' AND id='$id'");
+                if (!$res) {
+                    return array();
+                }
+                $nbr = (int) @sqlite_fetch_single($res);
+                if ($nbr > 0) {
+                    $matching = true;
+                }
+            }
+            if (!$matching) {
+                $result[] = $id;
+            }
+        }
+        return $result;
+    }
+
+    /**
+     * Return an array of stored cache ids which match any given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of any matching cache ids (string)
+     */
+    public function getIdsMatchingAnyTags($tags = array())
+    {
+        $first = true;
+        $ids = array();
+        foreach ($tags as $tag) {
+            $res = $this->_query("SELECT DISTINCT(id) AS id FROM tag WHERE name='$tag'");
+            if (!$res) {
+                return array();
+            }
+            $rows = @sqlite_fetch_all($res, SQLITE_ASSOC);
+            $ids2 = array();
+            foreach ($rows as $row) {
+                $ids2[] = $row['id'];
+            }
+            if ($first) {
+                $ids = $ids2;
+                $first = false;
+            } else {
+                $ids = array_merge($ids, $ids2);
+            }
+        }
+        $result = array();
+        foreach ($ids as $id) {
+            $result[] = $id;
+        }
+        return $result;
+    }
+
+    /**
+     * Return the filling percentage of the backend storage
+     *
+     * @throws Zend_Cache_Exception
+     * @return int integer between 0 and 100
+     */
+    public function getFillingPercentage()
+    {
+        $dir = dirname($this->_options['cache_db_complete_path']);
+        $free = disk_free_space($dir);
+        $total = disk_total_space($dir);
+        if ($total == 0) {
+            Zend_Cache::throwException('can\'t get disk_total_space');
+        } else {
+            if ($free >= $total) {
+                return 100;
+            }
+            return ((int) (100. * ($total - $free) / $total));
+        }
+    }
+
+    /**
+     * Return an array of metadatas for the given cache id
+     *
+     * The array must include these keys :
+     * - expire : the expire timestamp
+     * - tags : a string array of tags
+     * - mtime : timestamp of last modification time
+     *
+     * @param string $id cache id
+     * @return array array of metadatas (false if the cache id is not found)
+     */
+    public function getMetadatas($id)
+    {
+        $tags = array();
+        $res = $this->_query("SELECT name FROM tag WHERE id='$id'");
+        if ($res) {
+            $rows = @sqlite_fetch_all($res, SQLITE_ASSOC);
+            foreach ($rows as $row) {
+                $tags[] = $row['name'];
+            }
+        }
+        $this->_query('CREATE TABLE cache (id TEXT PRIMARY KEY, content BLOB, lastModified INTEGER, expire INTEGER)');
+        $res = $this->_query("SELECT lastModified,expire FROM cache WHERE id='$id'");
+        if (!$res) {
+            return false;
+        }
+        $row = @sqlite_fetch_array($res, SQLITE_ASSOC);
+        return array(
+            'tags' => $tags,
+            'mtime' => $row['lastModified'],
+            'expire' => $row['expire']
+        );
+    }
+
+    /**
+     * Give (if possible) an extra lifetime to the given cache id
+     *
+     * @param string $id cache id
+     * @param int $extraLifetime
+     * @return boolean true if ok
+     */
+    public function touch($id, $extraLifetime)
+    {
+        $sql = "SELECT expire FROM cache WHERE id='$id' AND (expire=0 OR expire>" . time() . ')';
+        $res = $this->_query($sql);
+        if (!$res) {
+            return false;
+        }
+        $expire = @sqlite_fetch_single($res);
+        $newExpire = $expire + $extraLifetime;
+        $res = $this->_query("UPDATE cache SET lastModified=" . time() . ", expire=$newExpire WHERE id='$id'");
+        if ($res) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * Return an associative array of capabilities (booleans) of the backend
+     *
+     * The array must include these keys :
+     * - automatic_cleaning (is automating cleaning necessary)
+     * - tags (are tags supported)
+     * - expired_read (is it possible to read expired cache records
+     *                 (for doNotTestCacheValidity option for example))
+     * - priority does the backend deal with priority when saving
+     * - infinite_lifetime (is infinite lifetime can work with this backend)
+     * - get_list (is it possible to get the list of cache ids and the complete list of tags)
+     *
+     * @return array associative of with capabilities
+     */
+    public function getCapabilities()
+    {
+        return array(
+            'automatic_cleaning' => true,
+            'tags' => true,
+            'expired_read' => true,
+            'priority' => false,
+            'infinite_lifetime' => true,
+            'get_list' => true
+        );
+    }
+
+    /**
+     * PUBLIC METHOD FOR UNIT TESTING ONLY !
+     *
+     * Force a cache record to expire
+     *
+     * @param string $id Cache id
+     */
+    public function ___expire($id)
+    {
+        $time = time() - 1;
+        $this->_query("UPDATE cache SET lastModified=$time, expire=$time WHERE id='$id'");
+    }
+
+    /**
+     * Return the connection resource
+     *
+     * If we are not connected, the connection is made
+     *
+     * @throws Zend_Cache_Exception
+     * @return resource Connection resource
+     */
+    private function _getConnection()
+    {
+        if (is_resource($this->_db)) {
+            return $this->_db;
+        } else {
+            $this->_db = @sqlite_open($this->_options['cache_db_complete_path']);
+            if (!(is_resource($this->_db))) {
+                Zend_Cache::throwException("Impossible to open " . $this->_options['cache_db_complete_path'] . " cache DB file");
+            }
+            return $this->_db;
+        }
+    }
+
+    /**
+     * Execute an SQL query silently
+     *
+     * @param string $query SQL query
+     * @return mixed|false query results
+     */
+    private function _query($query)
+    {
+        $db = $this->_getConnection();
+        if (is_resource($db)) {
+            $res = @sqlite_query($db, $query);
+            if ($res === false) {
+                return false;
+            } else {
+                return $res;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Deal with the automatic vacuum process
+     *
+     * @return void
+     */
+    private function _automaticVacuum()
+    {
+        if ($this->_options['automatic_vacuum_factor'] > 0) {
+            $rand = rand(1, $this->_options['automatic_vacuum_factor']);
+            if ($rand == 1) {
+                $this->_query('VACUUM');
+            }
+        }
+    }
+
+    /**
+     * Register a cache id with the given tag
+     *
+     * @param  string $id  Cache id
+     * @param  string $tag Tag
+     * @return boolean True if no problem
+     */
+    private function _registerTag($id, $tag) {
+        $res = $this->_query("DELETE FROM TAG WHERE name='$tag' AND id='$id'");
+        $res = $this->_query("INSERT INTO tag (name, id) VALUES ('$tag', '$id')");
+        if (!$res) {
+            $this->_log("Zend_Cache_Backend_Sqlite::_registerTag() : impossible to register tag=$tag on id=$id");
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Build the database structure
+     *
+     * @return false
+     */
+    private function _buildStructure()
+    {
+        $this->_query('DROP INDEX tag_id_index');
+        $this->_query('DROP INDEX tag_name_index');
+        $this->_query('DROP INDEX cache_id_expire_index');
+        $this->_query('DROP TABLE version');
+        $this->_query('DROP TABLE cache');
+        $this->_query('DROP TABLE tag');
+        $this->_query('CREATE TABLE version (num INTEGER PRIMARY KEY)');
+        $this->_query('CREATE TABLE cache (id TEXT PRIMARY KEY, content BLOB, lastModified INTEGER, expire INTEGER)');
+        $this->_query('CREATE TABLE tag (name TEXT, id TEXT)');
+        $this->_query('CREATE INDEX tag_id_index ON tag(id)');
+        $this->_query('CREATE INDEX tag_name_index ON tag(name)');
+        $this->_query('CREATE INDEX cache_id_expire_index ON cache(id, expire)');
+        $this->_query('INSERT INTO version (num) VALUES (1)');
+    }
+
+    /**
+     * Check if the database structure is ok (with the good version)
+     *
+     * @return boolean True if ok
+     */
+    private function _checkStructureVersion()
+    {
+        $result = $this->_query("SELECT num FROM version");
+        if (!$result) return false;
+        $row = @sqlite_fetch_array($result);
+        if (!$row) {
+            return false;
+        }
+        if (((int) $row['num']) != 1) {
+            // old cache structure
+            $this->_log('Zend_Cache_Backend_Sqlite::_checkStructureVersion() : old cache structure version detected => the cache is going to be dropped');
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * Zend_Cache::CLEANING_MODE_ALL (default)    => remove all cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_OLD              => remove too old cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_MATCHING_TAG     => remove cache entries matching all given tags
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => remove cache entries not {matching one of the given tags}
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG => remove cache entries matching any given tags
+     *                                               ($tags can be an array of strings or a single string)
+     *
+     * @param  string $mode Clean mode
+     * @param  array  $tags Array of tags
+     * @return boolean True if no problem
+     */
+    private function _clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        switch ($mode) {
+            case Zend_Cache::CLEANING_MODE_ALL:
+                $res1 = $this->_query('DELETE FROM cache');
+                $res2 = $this->_query('DELETE FROM tag');
+                return $res1 && $res2;
+                break;
+            case Zend_Cache::CLEANING_MODE_OLD:
+                $mktime = time();
+                $res1 = $this->_query("DELETE FROM tag WHERE id IN (SELECT id FROM cache WHERE expire>0 AND expire<=$mktime)");
+                $res2 = $this->_query("DELETE FROM cache WHERE expire>0 AND expire<=$mktime");
+                return $res1 && $res2;
+                break;
+            case Zend_Cache::CLEANING_MODE_MATCHING_TAG:
+                $ids = $this->getIdsMatchingTags($tags);
+                $result = true;
+                foreach ($ids as $id) {
+                    $result = $this->remove($id) && $result;
+                }
+                return $result;
+                break;
+            case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG:
+                $ids = $this->getIdsNotMatchingTags($tags);
+                $result = true;
+                foreach ($ids as $id) {
+                    $result = $this->remove($id) && $result;
+                }
+                return $result;
+                break;
+            case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG:
+                $ids = $this->getIdsMatchingAnyTags($tags);
+                $result = true;
+                foreach ($ids as $id) {
+                    $result = $this->remove($id) && $result;
+                }
+                return $result;
+                break;
+            default:
+                break;
+        }
+        return false;
+    }
+
+    /**
+     * Check if the database structure is ok (with the good version), if no : build it
+     *
+     * @throws Zend_Cache_Exception
+     * @return boolean True if ok
+     */
+    private function _checkAndBuildStructure()
+    {
+        if (!($this->_structureChecked)) {
+            if (!$this->_checkStructureVersion()) {
+                $this->_buildStructure();
+                if (!$this->_checkStructureVersion()) {
+                    Zend_Cache::throwException("Impossible to build cache structure in " . $this->_options['cache_db_complete_path']);
+                }
+            }
+            $this->_structureChecked = true;
+        }
+        return true;
+    }
+
+}
diff --git a/library/vendor/Zend/Cache/Backend/Static.php b/library/vendor/Zend/Cache/Backend/Static.php
new file mode 100644
index 0000000..9203020
--- /dev/null
+++ b/library/vendor/Zend/Cache/Backend/Static.php
@@ -0,0 +1,577 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+
+/**
+ * @see Zend_Cache_Backend
+ */
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_Static
+    extends Zend_Cache_Backend
+    implements Zend_Cache_Backend_Interface
+{
+    const INNER_CACHE_NAME = 'zend_cache_backend_static_tagcache';
+
+    /**
+     * Static backend options
+     * @var array
+     */
+    protected $_options = array(
+        'public_dir'           => null,
+        'sub_dir'              => 'html',
+        'file_extension'       => '.html',
+        'index_filename'       => 'index',
+        'file_locking'         => true,
+        'cache_file_perm'      => 0600,
+        'cache_directory_perm' => 0700,
+        'debug_header'         => false,
+        'tag_cache'            => null,
+        'disable_caching'      => false
+    );
+
+    /**
+     * Cache for handling tags
+     * @var Zend_Cache_Core
+     */
+    protected $_tagCache = null;
+
+    /**
+     * Tagged items
+     * @var array
+     */
+    protected $_tagged = null;
+
+    /**
+     * Interceptor child method to handle the case where an Inner
+     * Cache object is being set since it's not supported by the
+     * standard backend interface
+     *
+     * @param  string $name
+     * @param  mixed $value
+     * @return Zend_Cache_Backend_Static
+     */
+    public function setOption($name, $value)
+    {
+        if ($name == 'tag_cache') {
+            $this->setInnerCache($value);
+        } else {
+            // See #ZF-12047 and #GH-91
+            if ($name == 'cache_file_umask') {
+                trigger_error(
+                    "'cache_file_umask' is deprecated -> please use 'cache_file_perm' instead",
+                    E_USER_NOTICE
+                );
+
+                $name = 'cache_file_perm';
+            }
+            if ($name == 'cache_directory_umask') {
+                trigger_error(
+                    "'cache_directory_umask' is deprecated -> please use 'cache_directory_perm' instead",
+                    E_USER_NOTICE
+                );
+
+                $name = 'cache_directory_perm';
+            }
+
+            parent::setOption($name, $value);
+        }
+        return $this;
+    }
+
+    /**
+     * Retrieve any option via interception of the parent's statically held
+     * options including the local option for a tag cache.
+     *
+     * @param  string $name
+     * @return mixed
+     */
+    public function getOption($name)
+    {
+        $name = strtolower($name);
+
+        if ($name == 'tag_cache') {
+            return $this->getInnerCache();
+        }
+
+        return parent::getOption($name);
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * Note : return value is always "string" (unserialization is done by the core not by the backend)
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @return string|false cached datas
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        if (($id = (string)$id) === '') {
+            $id = $this->_detectId();
+        } else {
+            $id = $this->_decodeId($id);
+        }
+        if (!$this->_verifyPath($id)) {
+            Zend_Cache::throwException('Invalid cache id: does not match expected public_dir path');
+        }
+        if ($doNotTestCacheValidity) {
+            $this->_log("Zend_Cache_Backend_Static::load() : \$doNotTestCacheValidity=true is unsupported by the Static backend");
+        }
+
+        $fileName = basename($id);
+        if ($fileName === '') {
+            $fileName = $this->_options['index_filename'];
+        }
+        $pathName = $this->_options['public_dir'] . dirname($id);
+        $file     = rtrim($pathName, '/') . '/' . $fileName . $this->_options['file_extension'];
+        if (file_exists($file)) {
+            $content = file_get_contents($file);
+            return $content;
+        }
+
+        return false;
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param  string $id cache id
+     * @return bool
+     */
+    public function test($id)
+    {
+        $id = $this->_decodeId($id);
+        if (!$this->_verifyPath($id)) {
+            Zend_Cache::throwException('Invalid cache id: does not match expected public_dir path');
+        }
+
+        $fileName = basename($id);
+        if ($fileName === '') {
+            $fileName = $this->_options['index_filename'];
+        }
+        if ($this->_tagged === null && $tagged = $this->getInnerCache()->load(self::INNER_CACHE_NAME)) {
+            $this->_tagged = $tagged;
+        } elseif (!$this->_tagged) {
+            return false;
+        }
+        $pathName = $this->_options['public_dir'] . dirname($id);
+
+        // Switch extension if needed
+        if (isset($this->_tagged[$id])) {
+            $extension = $this->_tagged[$id]['extension'];
+        } else {
+            $extension = $this->_options['file_extension'];
+        }
+        $file     = $pathName . '/' . $fileName . $extension;
+        if (file_exists($file)) {
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param  string $data            Datas to cache
+     * @param  string $id              Cache id
+     * @param  array $tags             Array of strings, the cache record will be tagged by each string entry
+     * @param  int   $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean true if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        if ($this->_options['disable_caching']) {
+            return true;
+        }
+        $extension = null;
+        if ($this->_isSerialized($data)) {
+            $data = unserialize($data);
+            $extension = '.' . ltrim($data[1], '.');
+            $data = $data[0];
+        }
+
+        clearstatcache();
+        if (($id = (string)$id) === '') {
+            $id = $this->_detectId();
+        } else {
+            $id = $this->_decodeId($id);
+        }
+
+        $fileName = basename($id);
+        if ($fileName === '') {
+            $fileName = $this->_options['index_filename'];
+        }
+
+        $pathName = realpath($this->_options['public_dir']) . dirname($id);
+        $this->_createDirectoriesFor($pathName);
+
+        if ($id === null || strlen($id) == 0) {
+            $dataUnserialized = unserialize($data);
+            $data = $dataUnserialized['data'];
+        }
+        $ext = $this->_options['file_extension'];
+        if ($extension) $ext = $extension;
+        $file = rtrim($pathName, '/') . '/' . $fileName . $ext;
+        if ($this->_options['file_locking']) {
+            $result = file_put_contents($file, $data, LOCK_EX);
+        } else {
+            $result = file_put_contents($file, $data);
+        }
+        @chmod($file, $this->_octdec($this->_options['cache_file_perm']));
+
+        if ($this->_tagged === null && $tagged = $this->getInnerCache()->load(self::INNER_CACHE_NAME)) {
+            $this->_tagged = $tagged;
+        } elseif ($this->_tagged === null) {
+            $this->_tagged = array();
+        }
+        if (!isset($this->_tagged[$id])) {
+            $this->_tagged[$id] = array();
+        }
+        if (!isset($this->_tagged[$id]['tags'])) {
+            $this->_tagged[$id]['tags'] = array();
+        }
+        $this->_tagged[$id]['tags'] = array_unique(array_merge($this->_tagged[$id]['tags'], $tags));
+        $this->_tagged[$id]['extension'] = $ext;
+        $this->getInnerCache()->save($this->_tagged, self::INNER_CACHE_NAME);
+        return (bool) $result;
+    }
+
+    /**
+     * Recursively create the directories needed to write the static file
+     */
+    protected function _createDirectoriesFor($path)
+    {
+        if (!is_dir($path)) {
+            $oldUmask = umask(0);
+            if ( !@mkdir($path, $this->_octdec($this->_options['cache_directory_perm']), true)) {
+                $lastErr = error_get_last();
+                umask($oldUmask);
+                Zend_Cache::throwException("Can't create directory: {$lastErr['message']}");
+            }
+            umask($oldUmask);
+        }
+    }
+
+    /**
+     * Detect serialization of data (cannot predict since this is the only way
+     * to obey the interface yet pass in another parameter).
+     *
+     * In future, ZF 2.0, check if we can just avoid the interface restraints.
+     *
+     * This format is the only valid one possible for the class, so it's simple
+     * to just run a regular expression for the starting serialized format.
+     */
+    protected function _isSerialized($data)
+    {
+        return preg_match("/a:2:\{i:0;s:\d+:\"/", $data);
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id Cache id
+     * @return boolean True if no problem
+     */
+    public function remove($id)
+    {
+        if (!$this->_verifyPath($id)) {
+            Zend_Cache::throwException('Invalid cache id: does not match expected public_dir path');
+        }
+        $fileName = basename($id);
+        if ($this->_tagged === null && $tagged = $this->getInnerCache()->load(self::INNER_CACHE_NAME)) {
+            $this->_tagged = $tagged;
+        } elseif (!$this->_tagged) {
+            return false;
+        }
+        if (isset($this->_tagged[$id])) {
+            $extension = $this->_tagged[$id]['extension'];
+        } else {
+            $extension = $this->_options['file_extension'];
+        }
+        if ($fileName === '') {
+            $fileName = $this->_options['index_filename'];
+        }
+        $pathName = $this->_options['public_dir'] . dirname($id);
+        $file     = realpath($pathName) . '/' . $fileName . $extension;
+        if (!file_exists($file)) {
+            return false;
+        }
+        return unlink($file);
+    }
+
+    /**
+     * Remove a cache record recursively for the given directory matching a
+     * REQUEST_URI based relative path (deletes the actual file matching this
+     * in addition to the matching directory)
+     *
+     * @param  string $id Cache id
+     * @return boolean True if no problem
+     */
+    public function removeRecursively($id)
+    {
+        if (!$this->_verifyPath($id)) {
+            Zend_Cache::throwException('Invalid cache id: does not match expected public_dir path');
+        }
+        $fileName = basename($id);
+        if ($fileName === '') {
+            $fileName = $this->_options['index_filename'];
+        }
+        $pathName  = $this->_options['public_dir'] . dirname($id);
+        $file      = $pathName . '/' . $fileName . $this->_options['file_extension'];
+        $directory = $pathName . '/' . $fileName;
+        if (file_exists($directory)) {
+            if (!is_writable($directory)) {
+                return false;
+            }
+            if (is_dir($directory)) {
+                foreach (new DirectoryIterator($directory) as $file) {
+                    if (true === $file->isFile()) {
+                        if (false === unlink($file->getPathName())) {
+                            return false;
+                        }
+                    }
+                }
+            }
+            rmdir($directory);
+        }
+        if (file_exists($file)) {
+            if (!is_writable($file)) {
+                return false;
+            }
+            return unlink($file);
+        }
+        return true;
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * Zend_Cache::CLEANING_MODE_ALL (default)    => remove all cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_OLD              => remove too old cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_MATCHING_TAG     => remove cache entries matching all given tags
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => remove cache entries not {matching one of the given tags}
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG => remove cache entries matching any given tags
+     *                                               ($tags can be an array of strings or a single string)
+     *
+     * @param  string $mode Clean mode
+     * @param  array  $tags Array of tags
+     * @return boolean true if no problem
+     * @throws Zend_Exception
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        $result = false;
+        switch ($mode) {
+            case Zend_Cache::CLEANING_MODE_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG:
+                if (empty($tags)) {
+                    throw new Zend_Exception('Cannot use tag matching modes as no tags were defined');
+                }
+                if ($this->_tagged === null && $tagged = $this->getInnerCache()->load(self::INNER_CACHE_NAME)) {
+                    $this->_tagged = $tagged;
+                } elseif (!$this->_tagged) {
+                    return true;
+                }
+                foreach ($tags as $tag) {
+                    $urls = array_keys($this->_tagged);
+                    foreach ($urls as $url) {
+                        if (isset($this->_tagged[$url]['tags']) && in_array($tag, $this->_tagged[$url]['tags'])) {
+                            $this->remove($url);
+                            unset($this->_tagged[$url]);
+                        }
+                    }
+                }
+                $this->getInnerCache()->save($this->_tagged, self::INNER_CACHE_NAME);
+                $result = true;
+                break;
+            case Zend_Cache::CLEANING_MODE_ALL:
+                if ($this->_tagged === null) {
+                    $tagged = $this->getInnerCache()->load(self::INNER_CACHE_NAME);
+                    $this->_tagged = $tagged;
+                }
+                if ($this->_tagged === null || empty($this->_tagged)) {
+                    return true;
+                }
+                $urls = array_keys($this->_tagged);
+                foreach ($urls as $url) {
+                    $this->remove($url);
+                    unset($this->_tagged[$url]);
+                }
+                $this->getInnerCache()->save($this->_tagged, self::INNER_CACHE_NAME);
+                $result = true;
+                break;
+            case Zend_Cache::CLEANING_MODE_OLD:
+                $this->_log("Zend_Cache_Backend_Static : Selected Cleaning Mode Currently Unsupported By This Backend");
+                break;
+            case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG:
+                if (empty($tags)) {
+                    throw new Zend_Exception('Cannot use tag matching modes as no tags were defined');
+                }
+                if ($this->_tagged === null) {
+                    $tagged = $this->getInnerCache()->load(self::INNER_CACHE_NAME);
+                    $this->_tagged = $tagged;
+                }
+                if ($this->_tagged === null || empty($this->_tagged)) {
+                    return true;
+                }
+                $urls = array_keys($this->_tagged);
+                foreach ($urls as $url) {
+                    $difference = array_diff($tags, $this->_tagged[$url]['tags']);
+                    if (count($tags) == count($difference)) {
+                        $this->remove($url);
+                        unset($this->_tagged[$url]);
+                    }
+                }
+                $this->getInnerCache()->save($this->_tagged, self::INNER_CACHE_NAME);
+                $result = true;
+                break;
+            default:
+                Zend_Cache::throwException('Invalid mode for clean() method');
+                break;
+        }
+        return $result;
+    }
+
+    /**
+     * Set an Inner Cache, used here primarily to store Tags associated
+     * with caches created by this backend. Note: If Tags are lost, the cache
+     * should be completely cleaned as the mapping of tags to caches will
+     * have been irrevocably lost.
+     *
+     * @param  Zend_Cache_Core
+     * @return void
+     */
+    public function setInnerCache(Zend_Cache_Core $cache)
+    {
+        $this->_tagCache = $cache;
+        $this->_options['tag_cache'] = $cache;
+    }
+
+    /**
+     * Get the Inner Cache if set
+     *
+     * @return Zend_Cache_Core
+     */
+    public function getInnerCache()
+    {
+        if ($this->_tagCache === null) {
+            Zend_Cache::throwException('An Inner Cache has not been set; use setInnerCache()');
+        }
+        return $this->_tagCache;
+    }
+
+    /**
+     * Verify path exists and is non-empty
+     *
+     * @param  string $path
+     * @return bool
+     */
+    protected function _verifyPath($path)
+    {
+        $path = realpath($path);
+        $base = realpath($this->_options['public_dir']);
+        return strncmp($path, $base, strlen($base)) !== 0;
+    }
+
+    /**
+     * Determine the page to save from the request
+     *
+     * @return string
+     */
+    protected function _detectId()
+    {
+        return $_SERVER['REQUEST_URI'];
+    }
+
+    /**
+     * Validate a cache id or a tag (security, reliable filenames, reserved prefixes...)
+     *
+     * Throw an exception if a problem is found
+     *
+     * @param  string $string Cache id or tag
+     * @throws Zend_Cache_Exception
+     * @return void
+     * @deprecated Not usable until perhaps ZF 2.0
+     */
+    protected static function _validateIdOrTag($string)
+    {
+        if (!is_string($string)) {
+            Zend_Cache::throwException('Invalid id or tag : must be a string');
+        }
+
+        // Internal only checked in Frontend - not here!
+        if (substr($string, 0, 9) == 'internal-') {
+            return;
+        }
+
+        // Validation assumes no query string, fragments or scheme included - only the path
+        if (!preg_match(
+                '/^(?:\/(?:(?:%[[:xdigit:]]{2}|[A-Za-z0-9-_.!~*\'()\[\]:@&=+$,;])*)?)+$/',
+                $string
+            )
+        ) {
+            Zend_Cache::throwException("Invalid id or tag '$string' : must be a valid URL path");
+        }
+    }
+
+    /**
+     * Detect an octal string and return its octal value for file permission ops
+     * otherwise return the non-string (assumed octal or decimal int already)
+     *
+     * @param string $val The potential octal in need of conversion
+     * @return int
+     */
+    protected function _octdec($val)
+    {
+        if (is_string($val) && decoct(octdec($val)) == $val) {
+            return octdec($val);
+        }
+        return $val;
+    }
+
+    /**
+     * Decode a request URI from the provided ID
+     *
+     * @param string $id
+     * @return string
+     */
+    protected function _decodeId($id)
+    {
+        return pack('H*', $id);
+    }
+}
diff --git a/library/vendor/Zend/Cache/Backend/Test.php b/library/vendor/Zend/Cache/Backend/Test.php
new file mode 100644
index 0000000..c06f959
--- /dev/null
+++ b/library/vendor/Zend/Cache/Backend/Test.php
@@ -0,0 +1,414 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+
+/**
+ * @see Zend_Cache_Backend
+ */
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_Test extends Zend_Cache_Backend implements Zend_Cache_Backend_ExtendedInterface
+{
+    /**
+     * Available options
+     *
+     * @var array available options
+     */
+    protected $_options = array();
+
+    /**
+     * Frontend or Core directives
+     *
+     * @var array directives
+     */
+    protected $_directives = array();
+
+    /**
+     * Array to log actions
+     *
+     * @var array $_log
+     */
+    private $_log = array();
+
+    /**
+     * Current index for log array
+     *
+     * @var int $_index
+     */
+    private $_index = 0;
+
+    /**
+     * Constructor
+     *
+     * @param  array $options associative array of options
+     * @return void
+     */
+    public function __construct($options = array())
+    {
+        $this->_addLog('construct', array($options));
+    }
+
+    /**
+     * Set the frontend directives
+     *
+     * @param  array $directives assoc of directives
+     * @return void
+     */
+    public function setDirectives($directives)
+    {
+        $this->_addLog('setDirectives', array($directives));
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * For this test backend only, if $id == 'false', then the method will return false
+     * if $id == 'serialized', the method will return a serialized array
+     * ('foo' else)
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @return string Cached datas (or false)
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        $this->_addLog('get', array($id, $doNotTestCacheValidity));
+
+        if ( $id == 'false'
+          || $id == 'd8523b3ee441006261eeffa5c3d3a0a7'
+          || $id == 'e83249ea22178277d5befc2c5e2e9ace'
+          || $id == '40f649b94977c0a6e76902e2a0b43587'
+          || $id == '88161989b73a4cbfd0b701c446115a99'
+          || $id == '205fc79cba24f0f0018eb92c7c8b3ba4'
+          || $id == '170720e35f38150b811f68a937fb042d')
+        {
+            return false;
+        }
+        if ($id=='serialized') {
+            return serialize(array('foo'));
+        }
+        if ($id=='serialized2') {
+            return serialize(array('headers' => array(), 'data' => 'foo'));
+        }
+        if ( $id == '71769f39054f75894288e397df04e445' || $id == '615d222619fb20b527168340cebd0578'
+          || $id == '8a02d218a5165c467e7a5747cc6bd4b6' || $id == '648aca1366211d17cbf48e65dc570bee'
+          || $id == '4a923ef02d7f997ca14d56dfeae25ea7') {
+            return serialize(array('foo', 'bar'));
+        }
+        if ( $id == 'f53c7d912cc523d9a65834c8286eceb9') {
+            return serialize(array('foobar'));
+        }
+        return 'foo';
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * For this test backend only, if $id == 'false', then the method will return false
+     * (123456 else)
+     *
+     * @param  string $id Cache id
+     * @return mixed|false false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id)
+    {
+        $this->_addLog('test', array($id));
+        if ($id=='false') {
+            return false;
+        }
+        if (($id=='3c439c922209e2cb0b54d6deffccd75a')) {
+            return false;
+        }
+        return 123456;
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * For this test backend only, if $id == 'false', then the method will return false
+     * (true else)
+     *
+     * @param  string $data             Datas to cache
+     * @param  string $id               Cache id
+     * @param  array  $tags             Array of strings, the cache record will be tagged by each string entry
+     * @param  int    $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean True if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        $this->_addLog('save', array($data, $id, $tags));
+        if (substr($id,-5)=='false') {
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * For this test backend only, if $id == 'false', then the method will return false
+     * (true else)
+     *
+     * @param  string $id Cache id
+     * @return boolean True if no problem
+     */
+    public function remove($id)
+    {
+        $this->_addLog('remove', array($id));
+        if (substr($id,-5)=='false') {
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * For this test backend only, if $mode == 'false', then the method will return false
+     * (true else)
+     *
+     * Available modes are :
+     * Zend_Cache::CLEANING_MODE_ALL (default)    => remove all cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_OLD              => remove too old cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_MATCHING_TAG     => remove cache entries matching all given tags
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => remove cache entries not {matching one of the given tags}
+     *                                               ($tags can be an array of strings or a single string)
+     *
+     * @param  string $mode Clean mode
+     * @param  array  $tags Array of tags
+     * @return boolean True if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        $this->_addLog('clean', array($mode, $tags));
+        if ($mode=='false') {
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Get the last log
+     *
+     * @return string The last log
+     */
+    public function getLastLog()
+    {
+        return $this->_log[$this->_index - 1];
+    }
+
+    /**
+     * Get the log index
+     *
+     * @return int Log index
+     */
+    public function getLogIndex()
+    {
+        return $this->_index;
+    }
+
+    /**
+     * Get the complete log array
+     *
+     * @return array Complete log array
+     */
+    public function getAllLogs()
+    {
+        return $this->_log;
+    }
+
+    /**
+     * Return true if the automatic cleaning is available for the backend
+     *
+     * @return boolean
+     */
+    public function isAutomaticCleaningAvailable()
+    {
+        return true;
+    }
+
+    /**
+     * Return an array of stored cache ids
+     *
+     * @return array array of stored cache ids (string)
+     */
+    public function getIds()
+    {
+        return array(
+            'prefix_id1', 'prefix_id2'
+        );
+    }
+
+    /**
+     * Return an array of stored tags
+     *
+     * @return array array of stored tags (string)
+     */
+    public function getTags()
+    {
+        return array(
+            'tag1', 'tag2'
+        );
+    }
+
+    /**
+     * Return an array of stored cache ids which match given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching cache ids (string)
+     */
+    public function getIdsMatchingTags($tags = array())
+    {
+        if ($tags == array('tag1', 'tag2')) {
+            return array('prefix_id1', 'prefix_id2');
+        }
+
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which don't match given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of not matching cache ids (string)
+     */
+    public function getIdsNotMatchingTags($tags = array())
+    {
+        if ($tags == array('tag3', 'tag4')) {
+            return array('prefix_id3', 'prefix_id4');
+        }
+
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which match any given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of any matching cache ids (string)
+     */
+    public function getIdsMatchingAnyTags($tags = array())
+    {
+        if ($tags == array('tag5', 'tag6')) {
+            return array('prefix_id5', 'prefix_id6');
+        }
+
+        return array();
+    }
+
+    /**
+     * Return the filling percentage of the backend storage
+     *
+     * @return int integer between 0 and 100
+     */
+    public function getFillingPercentage()
+    {
+        return 50;
+    }
+
+    /**
+     * Return an array of metadatas for the given cache id
+     *
+     * The array must include these keys :
+     * - expire : the expire timestamp
+     * - tags : a string array of tags
+     * - mtime : timestamp of last modification time
+     *
+     * @param string $id cache id
+     * @return array array of metadatas (false if the cache id is not found)
+     */
+    public function getMetadatas($id)
+    {
+        return false;
+    }
+
+    /**
+     * Give (if possible) an extra lifetime to the given cache id
+     *
+     * @param string $id cache id
+     * @param int $extraLifetime
+     * @return boolean true if ok
+     */
+    public function touch($id, $extraLifetime)
+    {
+        return true;
+    }
+
+    /**
+     * Return an associative array of capabilities (booleans) of the backend
+     *
+     * The array must include these keys :
+     * - automatic_cleaning (is automating cleaning necessary)
+     * - tags (are tags supported)
+     * - expired_read (is it possible to read expired cache records
+     *                 (for doNotTestCacheValidity option for example))
+     * - priority does the backend deal with priority when saving
+     * - infinite_lifetime (is infinite lifetime can work with this backend)
+     * - get_list (is it possible to get the list of cache ids and the complete list of tags)
+     *
+     * @return array associative of with capabilities
+     */
+    public function getCapabilities()
+    {
+        return array(
+            'automatic_cleaning' => true,
+            'tags'               => true,
+            'expired_read'       => false,
+            'priority'           => true,
+            'infinite_lifetime'  => true,
+            'get_list'           => true
+        );
+    }
+
+    /**
+     * Add an event to the log array
+     *
+     * @param  string $methodName MethodName
+     * @param  array  $args       Arguments
+     * @return void
+     */
+    private function _addLog($methodName, $args)
+    {
+        $this->_log[$this->_index] = array(
+            'methodName' => $methodName,
+            'args' => $args
+        );
+        $this->_index = $this->_index + 1;
+    }
+
+}
diff --git a/library/vendor/Zend/Cache/Backend/TwoLevels.php b/library/vendor/Zend/Cache/Backend/TwoLevels.php
new file mode 100644
index 0000000..1e6792b
--- /dev/null
+++ b/library/vendor/Zend/Cache/Backend/TwoLevels.php
@@ -0,0 +1,546 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+
+/**
+ * @see Zend_Cache_Backend_ExtendedInterface
+ */
+
+/**
+ * @see Zend_Cache_Backend
+ */
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+
+class Zend_Cache_Backend_TwoLevels extends Zend_Cache_Backend implements Zend_Cache_Backend_ExtendedInterface
+{
+    /**
+     * Available options
+     *
+     * =====> (string) slow_backend :
+     * - Slow backend name
+     * - Must implement the Zend_Cache_Backend_ExtendedInterface
+     * - Should provide a big storage
+     *
+     * =====> (string) fast_backend :
+     * - Flow backend name
+     * - Must implement the Zend_Cache_Backend_ExtendedInterface
+     * - Must be much faster than slow_backend
+     *
+     * =====> (array) slow_backend_options :
+     * - Slow backend options (see corresponding backend)
+     *
+     * =====> (array) fast_backend_options :
+     * - Fast backend options (see corresponding backend)
+     *
+     * =====> (int) stats_update_factor :
+     * - Disable / Tune the computation of the fast backend filling percentage
+     * - When saving a record into cache :
+     *     1               => systematic computation of the fast backend filling percentage
+     *     x (integer) > 1 => computation of the fast backend filling percentage randomly 1 times on x cache write
+     *
+     * =====> (boolean) slow_backend_custom_naming :
+     * =====> (boolean) fast_backend_custom_naming :
+     * =====> (boolean) slow_backend_autoload :
+     * =====> (boolean) fast_backend_autoload :
+     * - See Zend_Cache::factory() method
+     *
+     * =====> (boolean) auto_fill_fast_cache
+     * - If true, automatically fill the fast cache when a cache record was not found in fast cache, but did
+     *   exist in slow cache. This can be usefull when a non-persistent cache like APC or Memcached got
+     *   purged for whatever reason.
+     * 
+     * =====> (boolean) auto_refresh_fast_cache
+     * - If true, auto refresh the fast cache when a cache record is hit
+     *
+     * @var array available options
+     */
+    protected $_options = array(
+        'slow_backend' => 'File',
+        'fast_backend' => 'Apc',
+        'slow_backend_options' => array(),
+        'fast_backend_options' => array(),
+        'stats_update_factor' => 10,
+        'slow_backend_custom_naming' => false,
+        'fast_backend_custom_naming' => false,
+        'slow_backend_autoload' => false,
+        'fast_backend_autoload' => false,
+        'auto_fill_fast_cache' => true,
+        'auto_refresh_fast_cache' => true
+    );
+
+    /**
+     * Slow Backend
+     *
+     * @var Zend_Cache_Backend_ExtendedInterface
+     */
+    protected $_slowBackend;
+
+    /**
+     * Fast Backend
+     *
+     * @var Zend_Cache_Backend_ExtendedInterface
+     */
+    protected $_fastBackend;
+
+    /**
+     * Cache for the fast backend filling percentage
+     *
+     * @var int
+     */
+    protected $_fastBackendFillingPercentage = null;
+
+    /**
+     * Constructor
+     *
+     * @param  array $options Associative array of options
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        parent::__construct($options);
+
+        if ($this->_options['slow_backend'] === null) {
+            Zend_Cache::throwException('slow_backend option has to set');
+        } elseif ($this->_options['slow_backend'] instanceof Zend_Cache_Backend_ExtendedInterface) {
+            $this->_slowBackend = $this->_options['slow_backend'];
+        } else {
+            $this->_slowBackend = Zend_Cache::_makeBackend(
+                $this->_options['slow_backend'],
+                $this->_options['slow_backend_options'],
+                $this->_options['slow_backend_custom_naming'],
+                $this->_options['slow_backend_autoload']
+            );
+            if (!in_array('Zend_Cache_Backend_ExtendedInterface', class_implements($this->_slowBackend))) {
+                Zend_Cache::throwException('slow_backend must implement the Zend_Cache_Backend_ExtendedInterface interface');
+            }
+        }
+
+        if ($this->_options['fast_backend'] === null) {
+            Zend_Cache::throwException('fast_backend option has to set');
+        } elseif ($this->_options['fast_backend'] instanceof Zend_Cache_Backend_ExtendedInterface) {
+            $this->_fastBackend = $this->_options['fast_backend'];
+        } else {
+            $this->_fastBackend = Zend_Cache::_makeBackend(
+                $this->_options['fast_backend'],
+                $this->_options['fast_backend_options'],
+                $this->_options['fast_backend_custom_naming'],
+                $this->_options['fast_backend_autoload']
+            );
+            if (!in_array('Zend_Cache_Backend_ExtendedInterface', class_implements($this->_fastBackend))) {
+                Zend_Cache::throwException('fast_backend must implement the Zend_Cache_Backend_ExtendedInterface interface');
+            }
+        }
+
+        $this->_slowBackend->setDirectives($this->_directives);
+        $this->_fastBackend->setDirectives($this->_directives);
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param  string $id cache id
+     * @return mixed|false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id)
+    {
+        $fastTest = $this->_fastBackend->test($id);
+        if ($fastTest) {
+            return $fastTest;
+        } else {
+            return $this->_slowBackend->test($id);
+        }
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param  string $data            Datas to cache
+     * @param  string $id              Cache id
+     * @param  array $tags             Array of strings, the cache record will be tagged by each string entry
+     * @param  int   $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @param  int   $priority         integer between 0 (very low priority) and 10 (maximum priority) used by some particular backends
+     * @return boolean true if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false, $priority = 8)
+    {
+        $usage = $this->_getFastFillingPercentage('saving');
+        $boolFast = true;
+        $lifetime = $this->getLifetime($specificLifetime);
+        $preparedData = $this->_prepareData($data, $lifetime, $priority);
+        if (($priority > 0) && (10 * $priority >= $usage)) {
+            $fastLifetime = $this->_getFastLifetime($lifetime, $priority);
+            $boolFast = $this->_fastBackend->save($preparedData, $id, array(), $fastLifetime);
+            $boolSlow = $this->_slowBackend->save($preparedData, $id, $tags, $lifetime);
+        } else {
+            $boolSlow = $this->_slowBackend->save($preparedData, $id, $tags, $lifetime);
+            if ($boolSlow === true) {
+                $boolFast = $this->_fastBackend->remove($id);
+                if (!$boolFast && !$this->_fastBackend->test($id)) {
+                    // some backends return false on remove() even if the key never existed. (and it won't if fast is full)
+                    // all we care about is that the key doesn't exist now
+                    $boolFast = true;
+                }
+            }
+        }
+
+        return ($boolFast && $boolSlow);
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * Note : return value is always "string" (unserialization is done by the core not by the backend)
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @return string|false cached datas
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        $resultFast = $this->_fastBackend->load($id, $doNotTestCacheValidity);
+        if ($resultFast === false) {
+            $resultSlow = $this->_slowBackend->load($id, $doNotTestCacheValidity);
+            if ($resultSlow === false) {
+                // there is no cache at all for this id
+                return false;
+            }
+        }
+        $array = $resultFast !== false ? unserialize($resultFast) : unserialize($resultSlow);
+        
+        //In case no cache entry was found in the FastCache and auto-filling is enabled, copy data to FastCache
+        if ($resultFast === false && $this->_options['auto_fill_fast_cache']) {
+            $preparedData = $this->_prepareData($array['data'], $array['lifetime'], $array['priority']);
+            $this->_fastBackend->save($preparedData, $id, array(), $array['lifetime']);
+        }
+        // maybe, we have to refresh the fast cache ?
+        elseif ($this->_options['auto_refresh_fast_cache']) {
+            if ($array['priority'] == 10) {
+                // no need to refresh the fast cache with priority = 10
+                return $array['data'];
+            }
+            $newFastLifetime = $this->_getFastLifetime($array['lifetime'], $array['priority'], time() - $array['expire']);
+            // we have the time to refresh the fast cache
+            $usage = $this->_getFastFillingPercentage('loading');
+            if (($array['priority'] > 0) && (10 * $array['priority'] >= $usage)) {
+                // we can refresh the fast cache
+                $preparedData = $this->_prepareData($array['data'], $array['lifetime'], $array['priority']);
+                $this->_fastBackend->save($preparedData, $id, array(), $newFastLifetime);
+            }
+        }
+        return $array['data'];
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id Cache id
+     * @return boolean True if no problem
+     */
+    public function remove($id)
+    {
+        $boolFast = $this->_fastBackend->remove($id);
+        $boolSlow = $this->_slowBackend->remove($id);
+        return $boolFast && $boolSlow;
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * Zend_Cache::CLEANING_MODE_ALL (default)    => remove all cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_OLD              => remove too old cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_MATCHING_TAG     => remove cache entries matching all given tags
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => remove cache entries not {matching one of the given tags}
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG => remove cache entries matching any given tags
+     *                                               ($tags can be an array of strings or a single string)
+     *
+     * @param  string $mode Clean mode
+     * @param  array  $tags Array of tags
+     * @throws Zend_Cache_Exception
+     * @return boolean true if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        switch($mode) {
+            case Zend_Cache::CLEANING_MODE_ALL:
+                $boolFast = $this->_fastBackend->clean(Zend_Cache::CLEANING_MODE_ALL);
+                $boolSlow = $this->_slowBackend->clean(Zend_Cache::CLEANING_MODE_ALL);
+                return $boolFast && $boolSlow;
+                break;
+            case Zend_Cache::CLEANING_MODE_OLD:
+                return $this->_slowBackend->clean(Zend_Cache::CLEANING_MODE_OLD);
+            case Zend_Cache::CLEANING_MODE_MATCHING_TAG:
+                $ids = $this->_slowBackend->getIdsMatchingTags($tags);
+                $res = true;
+                foreach ($ids as $id) {
+                    $bool = $this->remove($id);
+                    $res = $res && $bool;
+                }
+                return $res;
+                break;
+            case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG:
+                $ids = $this->_slowBackend->getIdsNotMatchingTags($tags);
+                $res = true;
+                foreach ($ids as $id) {
+                    $bool = $this->remove($id);
+                    $res = $res && $bool;
+                }
+                return $res;
+                break;
+            case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG:
+                $ids = $this->_slowBackend->getIdsMatchingAnyTags($tags);
+                $res = true;
+                foreach ($ids as $id) {
+                    $bool = $this->remove($id);
+                    $res = $res && $bool;
+                }
+                return $res;
+                break;
+            default:
+                Zend_Cache::throwException('Invalid mode for clean() method');
+                break;
+        }
+    }
+
+    /**
+     * Return an array of stored cache ids
+     *
+     * @return array array of stored cache ids (string)
+     */
+    public function getIds()
+    {
+        return $this->_slowBackend->getIds();
+    }
+
+    /**
+     * Return an array of stored tags
+     *
+     * @return array array of stored tags (string)
+     */
+    public function getTags()
+    {
+        return $this->_slowBackend->getTags();
+    }
+
+    /**
+     * Return an array of stored cache ids which match given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching cache ids (string)
+     */
+    public function getIdsMatchingTags($tags = array())
+    {
+        return $this->_slowBackend->getIdsMatchingTags($tags);
+    }
+
+    /**
+     * Return an array of stored cache ids which don't match given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of not matching cache ids (string)
+     */
+    public function getIdsNotMatchingTags($tags = array())
+    {
+        return $this->_slowBackend->getIdsNotMatchingTags($tags);
+    }
+
+    /**
+     * Return an array of stored cache ids which match any given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of any matching cache ids (string)
+     */
+    public function getIdsMatchingAnyTags($tags = array())
+    {
+        return $this->_slowBackend->getIdsMatchingAnyTags($tags);
+    }
+
+    /**
+     * Return the filling percentage of the backend storage
+     *
+     * @return int integer between 0 and 100
+     */
+    public function getFillingPercentage()
+    {
+        return $this->_slowBackend->getFillingPercentage();
+    }
+
+    /**
+     * Return an array of metadatas for the given cache id
+     *
+     * The array must include these keys :
+     * - expire : the expire timestamp
+     * - tags : a string array of tags
+     * - mtime : timestamp of last modification time
+     *
+     * @param string $id cache id
+     * @return array array of metadatas (false if the cache id is not found)
+     */
+    public function getMetadatas($id)
+    {
+        return $this->_slowBackend->getMetadatas($id);
+    }
+
+    /**
+     * Give (if possible) an extra lifetime to the given cache id
+     *
+     * @param string $id cache id
+     * @param int $extraLifetime
+     * @return boolean true if ok
+     */
+    public function touch($id, $extraLifetime)
+    {
+        return $this->_slowBackend->touch($id, $extraLifetime);
+    }
+
+    /**
+     * Return an associative array of capabilities (booleans) of the backend
+     *
+     * The array must include these keys :
+     * - automatic_cleaning (is automating cleaning necessary)
+     * - tags (are tags supported)
+     * - expired_read (is it possible to read expired cache records
+     *                 (for doNotTestCacheValidity option for example))
+     * - priority does the backend deal with priority when saving
+     * - infinite_lifetime (is infinite lifetime can work with this backend)
+     * - get_list (is it possible to get the list of cache ids and the complete list of tags)
+     *
+     * @return array associative of with capabilities
+     */
+    public function getCapabilities()
+    {
+        $slowBackendCapabilities = $this->_slowBackend->getCapabilities();
+        return array(
+            'automatic_cleaning' => $slowBackendCapabilities['automatic_cleaning'],
+            'tags' => $slowBackendCapabilities['tags'],
+            'expired_read' => $slowBackendCapabilities['expired_read'],
+            'priority' => $slowBackendCapabilities['priority'],
+            'infinite_lifetime' => $slowBackendCapabilities['infinite_lifetime'],
+            'get_list' => $slowBackendCapabilities['get_list']
+        );
+    }
+
+    /**
+     * Prepare a serialized array to store datas and metadatas informations
+     *
+     * @param string $data data to store
+     * @param int $lifetime original lifetime
+     * @param int $priority priority
+     * @return string serialize array to store into cache
+     */
+    private function _prepareData($data, $lifetime, $priority)
+    {
+        $lt = $lifetime;
+        if ($lt === null) {
+            $lt = 9999999999;
+        }
+        return serialize(array(
+            'data' => $data,
+            'lifetime' => $lifetime,
+            'expire' => time() + $lt,
+            'priority' => $priority
+        ));
+    }
+
+    /**
+     * Compute and return the lifetime for the fast backend
+     *
+     * @param int $lifetime original lifetime
+     * @param int $priority priority
+     * @param int $maxLifetime maximum lifetime
+     * @return int lifetime for the fast backend
+     */
+    private function _getFastLifetime($lifetime, $priority, $maxLifetime = null)
+    {
+        if ($lifetime <= 0) {
+            // if no lifetime, we have an infinite lifetime
+            // we need to use arbitrary lifetimes
+            $fastLifetime = (int) (2592000 / (11 - $priority));
+        } else {
+            // prevent computed infinite lifetime (0) by ceil
+            $fastLifetime = (int) ceil($lifetime / (11 - $priority));
+        }
+
+        if ($maxLifetime >= 0 && $fastLifetime > $maxLifetime) {
+            return $maxLifetime;
+        }
+
+        return $fastLifetime;
+    }
+
+    /**
+     * PUBLIC METHOD FOR UNIT TESTING ONLY !
+     *
+     * Force a cache record to expire
+     *
+     * @param string $id cache id
+     */
+    public function ___expire($id)
+    {
+        $this->_fastBackend->remove($id);
+        $this->_slowBackend->___expire($id);
+    }
+
+    private function _getFastFillingPercentage($mode)
+    {
+
+        if ($mode == 'saving') {
+            // mode saving
+            if ($this->_fastBackendFillingPercentage === null) {
+                $this->_fastBackendFillingPercentage = $this->_fastBackend->getFillingPercentage();
+            } else {
+                $rand = rand(1, $this->_options['stats_update_factor']);
+                if ($rand == 1) {
+                    // we force a refresh
+                    $this->_fastBackendFillingPercentage = $this->_fastBackend->getFillingPercentage();
+                }
+            }
+        } else {
+            // mode loading
+            // we compute the percentage only if it's not available in cache
+            if ($this->_fastBackendFillingPercentage === null) {
+                $this->_fastBackendFillingPercentage = $this->_fastBackend->getFillingPercentage();
+            }
+        }
+        return $this->_fastBackendFillingPercentage;
+    }
+
+}
diff --git a/library/vendor/Zend/Cache/Backend/WinCache.php b/library/vendor/Zend/Cache/Backend/WinCache.php
new file mode 100644
index 0000000..c922280
--- /dev/null
+++ b/library/vendor/Zend/Cache/Backend/WinCache.php
@@ -0,0 +1,347 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+
+/**
+ * @see Zend_Cache_Backend
+ */
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_WinCache extends Zend_Cache_Backend implements Zend_Cache_Backend_ExtendedInterface
+{
+    /**
+     * Log message
+     */
+    const TAGS_UNSUPPORTED_BY_CLEAN_OF_WINCACHE_BACKEND = 'Zend_Cache_Backend_WinCache::clean() : tags are unsupported by the WinCache backend';
+    const TAGS_UNSUPPORTED_BY_SAVE_OF_WINCACHE_BACKEND =  'Zend_Cache_Backend_WinCache::save() : tags are unsupported by the WinCache backend';
+
+    /**
+     * Constructor
+     *
+     * @param  array $options associative array of options
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        if (!extension_loaded('wincache')) {
+            Zend_Cache::throwException('The wincache extension must be loaded for using this backend !');
+        }
+        parent::__construct($options);
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * WARNING $doNotTestCacheValidity=true is unsupported by the WinCache backend
+     *
+     * @param  string  $id                     cache id
+     * @param  boolean $doNotTestCacheValidity if set to true, the cache validity won't be tested
+     * @return string cached datas (or false)
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        $tmp = wincache_ucache_get($id);
+        if (is_array($tmp)) {
+            return $tmp[0];
+        }
+        return false;
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param  string $id cache id
+     * @return mixed false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id)
+    {
+        $tmp = wincache_ucache_get($id);
+        if (is_array($tmp)) {
+            return $tmp[1];
+        }
+        return false;
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param string $data datas to cache
+     * @param string $id cache id
+     * @param array $tags array of strings, the cache record will be tagged by each string entry
+     * @param int $specificLifetime if != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean true if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        $lifetime = $this->getLifetime($specificLifetime);
+        $result = wincache_ucache_set($id, array($data, time(), $lifetime), $lifetime);
+        if (count($tags) > 0) {
+            $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_WINCACHE_BACKEND);
+        }
+        return $result;
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id cache id
+     * @return boolean true if no problem
+     */
+    public function remove($id)
+    {
+        return wincache_ucache_delete($id);
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * 'all' (default)  => remove all cache entries ($tags is not used)
+     * 'old'            => unsupported
+     * 'matchingTag'    => unsupported
+     * 'notMatchingTag' => unsupported
+     * 'matchingAnyTag' => unsupported
+     *
+     * @param  string $mode clean mode
+     * @param  array  $tags array of tags
+     * @throws Zend_Cache_Exception
+     * @return boolean true if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        switch ($mode) {
+            case Zend_Cache::CLEANING_MODE_ALL:
+                return wincache_ucache_clear();
+                break;
+            case Zend_Cache::CLEANING_MODE_OLD:
+                $this->_log("Zend_Cache_Backend_WinCache::clean() : CLEANING_MODE_OLD is unsupported by the WinCache backend");
+                break;
+            case Zend_Cache::CLEANING_MODE_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG:
+                $this->_log(self::TAGS_UNSUPPORTED_BY_CLEAN_OF_WINCACHE_BACKEND);
+                break;
+            default:
+                Zend_Cache::throwException('Invalid mode for clean() method');
+                break;
+        }
+    }
+
+    /**
+     * Return true if the automatic cleaning is available for the backend
+     *
+     * DEPRECATED : use getCapabilities() instead
+     *
+     * @deprecated
+     * @return boolean
+     */
+    public function isAutomaticCleaningAvailable()
+    {
+        return false;
+    }
+
+    /**
+     * Return the filling percentage of the backend storage
+     *
+     * @throws Zend_Cache_Exception
+     * @return int integer between 0 and 100
+     */
+    public function getFillingPercentage()
+    {
+        $mem = wincache_ucache_meminfo();
+        $memSize = $mem['memory_total'];
+        $memUsed = $memSize - $mem['memory_free'];
+        if ($memSize == 0) {
+            Zend_Cache::throwException('can\'t get WinCache memory size');
+        }
+        if ($memUsed > $memSize) {
+            return 100;
+        }
+        return ((int) (100. * ($memUsed / $memSize)));
+    }
+
+    /**
+     * Return an array of stored tags
+     *
+     * @return array array of stored tags (string)
+     */
+    public function getTags()
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_WINCACHE_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which match given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching cache ids (string)
+     */
+    public function getIdsMatchingTags($tags = array())
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_WINCACHE_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which don't match given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of not matching cache ids (string)
+     */
+    public function getIdsNotMatchingTags($tags = array())
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_WINCACHE_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which match any given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of any matching cache ids (string)
+     */
+    public function getIdsMatchingAnyTags($tags = array())
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_WINCACHE_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids
+     *
+     * @return array array of stored cache ids (string)
+     */
+    public function getIds()
+    {
+        $res = array();
+        $array = wincache_ucache_info();
+        $records = $array['ucache_entries'];
+        foreach ($records as $record) {
+            $res[] = $record['key_name'];
+        }
+        return $res;
+    }
+
+    /**
+     * Return an array of metadatas for the given cache id
+     *
+     * The array must include these keys :
+     * - expire : the expire timestamp
+     * - tags : a string array of tags
+     * - mtime : timestamp of last modification time
+     *
+     * @param string $id cache id
+     * @return array array of metadatas (false if the cache id is not found)
+     */
+    public function getMetadatas($id)
+    {
+        $tmp = wincache_ucache_get($id);
+        if (is_array($tmp)) {
+            $data = $tmp[0];
+            $mtime = $tmp[1];
+            if (!isset($tmp[2])) {
+                return false;
+            }
+            $lifetime = $tmp[2];
+            return array(
+                'expire' => $mtime + $lifetime,
+                'tags' => array(),
+                'mtime' => $mtime
+            );
+        }
+        return false;
+    }
+
+    /**
+     * Give (if possible) an extra lifetime to the given cache id
+     *
+     * @param string $id cache id
+     * @param int $extraLifetime
+     * @return boolean true if ok
+     */
+    public function touch($id, $extraLifetime)
+    {
+        $tmp = wincache_ucache_get($id);
+        if (is_array($tmp)) {
+            $data = $tmp[0];
+            $mtime = $tmp[1];
+            if (!isset($tmp[2])) {
+                return false;
+            }
+            $lifetime = $tmp[2];
+            $newLifetime = $lifetime - (time() - $mtime) + $extraLifetime;
+            if ($newLifetime <=0) {
+                return false;
+            }
+            return wincache_ucache_set($id, array($data, time(), $newLifetime), $newLifetime);
+        }
+        return false;
+    }
+
+    /**
+     * Return an associative array of capabilities (booleans) of the backend
+     *
+     * The array must include these keys :
+     * - automatic_cleaning (is automating cleaning necessary)
+     * - tags (are tags supported)
+     * - expired_read (is it possible to read expired cache records
+     *                 (for doNotTestCacheValidity option for example))
+     * - priority does the backend deal with priority when saving
+     * - infinite_lifetime (is infinite lifetime can work with this backend)
+     * - get_list (is it possible to get the list of cache ids and the complete list of tags)
+     *
+     * @return array associative of with capabilities
+     */
+    public function getCapabilities()
+    {
+        return array(
+            'automatic_cleaning' => false,
+            'tags' => false,
+            'expired_read' => false,
+            'priority' => false,
+            'infinite_lifetime' => false,
+            'get_list' => true
+        );
+    }
+
+}
diff --git a/library/vendor/Zend/Cache/Backend/Xcache.php b/library/vendor/Zend/Cache/Backend/Xcache.php
new file mode 100644
index 0000000..d78d52d
--- /dev/null
+++ b/library/vendor/Zend/Cache/Backend/Xcache.php
@@ -0,0 +1,219 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+
+/**
+ * @see Zend_Cache_Backend
+ */
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_Xcache extends Zend_Cache_Backend implements Zend_Cache_Backend_Interface
+{
+
+    /**
+     * Log message
+     */
+    const TAGS_UNSUPPORTED_BY_CLEAN_OF_XCACHE_BACKEND = 'Zend_Cache_Backend_Xcache::clean() : tags are unsupported by the Xcache backend';
+    const TAGS_UNSUPPORTED_BY_SAVE_OF_XCACHE_BACKEND =  'Zend_Cache_Backend_Xcache::save() : tags are unsupported by the Xcache backend';
+
+    /**
+     * Available options
+     *
+     * =====> (string) user :
+     * xcache.admin.user (necessary for the clean() method)
+     *
+     * =====> (string) password :
+     * xcache.admin.pass (clear, not MD5) (necessary for the clean() method)
+     *
+     * @var array available options
+     */
+    protected $_options = array(
+        'user' => null,
+        'password' => null
+    );
+
+    /**
+     * Constructor
+     *
+     * @param  array $options associative array of options
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        if (!extension_loaded('xcache')) {
+            Zend_Cache::throwException('The xcache extension must be loaded for using this backend !');
+        }
+        parent::__construct($options);
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * WARNING $doNotTestCacheValidity=true is unsupported by the Xcache backend
+     *
+     * @param  string  $id                     cache id
+     * @param  boolean $doNotTestCacheValidity if set to true, the cache validity won't be tested
+     * @return string cached datas (or false)
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        if ($doNotTestCacheValidity) {
+            $this->_log("Zend_Cache_Backend_Xcache::load() : \$doNotTestCacheValidity=true is unsupported by the Xcache backend");
+        }
+        $tmp = xcache_get($id);
+        if (is_array($tmp)) {
+            return $tmp[0];
+        }
+        return false;
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param  string $id cache id
+     * @return mixed false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id)
+    {
+        if (xcache_isset($id)) {
+            $tmp = xcache_get($id);
+            if (is_array($tmp)) {
+                return $tmp[1];
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param string $data datas to cache
+     * @param string $id cache id
+     * @param array $tags array of strings, the cache record will be tagged by each string entry
+     * @param int $specificLifetime if != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean true if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        $lifetime = $this->getLifetime($specificLifetime);
+        $result = xcache_set($id, array($data, time()), $lifetime);
+        if (count($tags) > 0) {
+            $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_XCACHE_BACKEND);
+        }
+        return $result;
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id cache id
+     * @return boolean true if no problem
+     */
+    public function remove($id)
+    {
+        return xcache_unset($id);
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * 'all' (default)  => remove all cache entries ($tags is not used)
+     * 'old'            => unsupported
+     * 'matchingTag'    => unsupported
+     * 'notMatchingTag' => unsupported
+     * 'matchingAnyTag' => unsupported
+     *
+     * @param  string $mode clean mode
+     * @param  array  $tags array of tags
+     * @throws Zend_Cache_Exception
+     * @return boolean true if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        switch ($mode) {
+            case Zend_Cache::CLEANING_MODE_ALL:
+                // Necessary because xcache_clear_cache() need basic authentification
+                $backup = array();
+                if (isset($_SERVER['PHP_AUTH_USER'])) {
+                    $backup['PHP_AUTH_USER'] = $_SERVER['PHP_AUTH_USER'];
+                }
+                if (isset($_SERVER['PHP_AUTH_PW'])) {
+                    $backup['PHP_AUTH_PW'] = $_SERVER['PHP_AUTH_PW'];
+                }
+                if ($this->_options['user']) {
+                    $_SERVER['PHP_AUTH_USER'] = $this->_options['user'];
+                }
+                if ($this->_options['password']) {
+                    $_SERVER['PHP_AUTH_PW'] = $this->_options['password'];
+                }
+
+                $cnt = xcache_count(XC_TYPE_VAR);
+                for ($i=0; $i < $cnt; $i++) {
+                    xcache_clear_cache(XC_TYPE_VAR, $i);
+                }
+
+                if (isset($backup['PHP_AUTH_USER'])) {
+                    $_SERVER['PHP_AUTH_USER'] = $backup['PHP_AUTH_USER'];
+                    $_SERVER['PHP_AUTH_PW'] = $backup['PHP_AUTH_PW'];
+                }
+                return true;
+                break;
+            case Zend_Cache::CLEANING_MODE_OLD:
+                $this->_log("Zend_Cache_Backend_Xcache::clean() : CLEANING_MODE_OLD is unsupported by the Xcache backend");
+                break;
+            case Zend_Cache::CLEANING_MODE_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG:
+                $this->_log(self::TAGS_UNSUPPORTED_BY_CLEAN_OF_XCACHE_BACKEND);
+                break;
+            default:
+                Zend_Cache::throwException('Invalid mode for clean() method');
+                break;
+        }
+    }
+
+    /**
+     * Return true if the automatic cleaning is available for the backend
+     *
+     * @return boolean
+     */
+    public function isAutomaticCleaningAvailable()
+    {
+        return false;
+    }
+
+}
diff --git a/library/vendor/Zend/Cache/Backend/ZendPlatform.php b/library/vendor/Zend/Cache/Backend/ZendPlatform.php
new file mode 100644
index 0000000..8e6f460
--- /dev/null
+++ b/library/vendor/Zend/Cache/Backend/ZendPlatform.php
@@ -0,0 +1,315 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+
+
+/**
+ * Impementation of Zend Cache Backend using the Zend Platform (Output Content Caching)
+ *
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_ZendPlatform extends Zend_Cache_Backend implements Zend_Cache_Backend_Interface
+{
+    /**
+     * internal ZP prefix
+     */
+    const TAGS_PREFIX = "internal_ZPtag:";
+
+    /**
+     * Constructor
+     * Validate that the Zend Platform is loaded and licensed
+     *
+     * @param  array $options Associative array of options
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        if (!function_exists('accelerator_license_info')) {
+            Zend_Cache::throwException('The Zend Platform extension must be loaded for using this backend !');
+        }
+        if (!function_exists('accelerator_get_configuration')) {
+            $licenseInfo = accelerator_license_info();
+            Zend_Cache::throwException('The Zend Platform extension is not loaded correctly: '.$licenseInfo['failure_reason']);
+        }
+        $accConf = accelerator_get_configuration();
+        if (@!$accConf['output_cache_licensed']) {
+            Zend_Cache::throwException('The Zend Platform extension does not have the proper license to use content caching features');
+        }
+        if (@!$accConf['output_cache_enabled']) {
+            Zend_Cache::throwException('The Zend Platform content caching feature must be enabled for using this backend, set the \'zend_accelerator.output_cache_enabled\' directive to On !');
+        }
+        if (!is_writable($accConf['output_cache_dir'])) {
+            Zend_Cache::throwException('The cache copies directory \''. ini_get('zend_accelerator.output_cache_dir') .'\' must be writable !');
+        }
+        parent:: __construct($options);
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @return string Cached data (or false)
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        // doNotTestCacheValidity implemented by giving zero lifetime to the cache
+        if ($doNotTestCacheValidity) {
+            $lifetime = 0;
+        } else {
+            $lifetime = $this->_directives['lifetime'];
+        }
+        $res = output_cache_get($id, $lifetime);
+        if($res) {
+            return $res[0];
+        } else {
+            return false;
+        }
+    }
+
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param  string $id Cache id
+     * @return mixed|false false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id)
+    {
+        $result = output_cache_get($id, $this->_directives['lifetime']);
+        if ($result) {
+            return $result[1];
+        }
+        return false;
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param  string $data             Data to cache
+     * @param  string $id               Cache id
+     * @param  array  $tags             Array of strings, the cache record will be tagged by each string entry
+     * @param  int    $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean true if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        if (!($specificLifetime === false)) {
+            $this->_log("Zend_Cache_Backend_ZendPlatform::save() : non false specifc lifetime is unsuported for this backend");
+        }
+
+        $lifetime = $this->_directives['lifetime'];
+        $result1  = output_cache_put($id, array($data, time()));
+        $result2  = (count($tags) == 0);
+
+        foreach ($tags as $tag) {
+            $tagid = self::TAGS_PREFIX.$tag;
+            $old_tags = output_cache_get($tagid, $lifetime);
+            if ($old_tags === false) {
+                $old_tags = array();
+            }
+            $old_tags[$id] = $id;
+            output_cache_remove_key($tagid);
+            $result2 = output_cache_put($tagid, $old_tags);
+        }
+
+        return $result1 && $result2;
+    }
+
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id Cache id
+     * @return boolean True if no problem
+     */
+    public function remove($id)
+    {
+        return output_cache_remove_key($id);
+    }
+
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * Zend_Cache::CLEANING_MODE_ALL (default)    => remove all cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_OLD              => remove too old cache entries ($tags is not used)
+     *                                               This mode is not supported in this backend
+     * Zend_Cache::CLEANING_MODE_MATCHING_TAG     => remove cache entries matching all given tags
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => unsupported
+     * Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG => remove cache entries matching any given tags
+     *                                               ($tags can be an array of strings or a single string)
+     *
+     * @param  string $mode Clean mode
+     * @param  array  $tags Array of tags
+     * @throws Zend_Cache_Exception
+     * @return boolean True if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        switch ($mode) {
+            case Zend_Cache::CLEANING_MODE_ALL:
+            case Zend_Cache::CLEANING_MODE_OLD:
+                $cache_dir = ini_get('zend_accelerator.output_cache_dir');
+                if (!$cache_dir) {
+                    return false;
+                }
+                $cache_dir .= '/.php_cache_api/';
+                return $this->_clean($cache_dir, $mode);
+                break;
+            case Zend_Cache::CLEANING_MODE_MATCHING_TAG:
+                $idlist = null;
+                foreach ($tags as $tag) {
+                    $next_idlist = output_cache_get(self::TAGS_PREFIX.$tag, $this->_directives['lifetime']);
+                    if ($idlist) {
+                        $idlist = array_intersect_assoc($idlist, $next_idlist);
+                    } else {
+                        $idlist = $next_idlist;
+                    }
+                    if (count($idlist) == 0) {
+                        // if ID list is already empty - we may skip checking other IDs
+                        $idlist = null;
+                        break;
+                    }
+                }
+                if ($idlist) {
+                    foreach ($idlist as $id) {
+                        output_cache_remove_key($id);
+                    }
+                }
+                return true;
+                break;
+            case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG:
+                $this->_log("Zend_Cache_Backend_ZendPlatform::clean() : CLEANING_MODE_NOT_MATCHING_TAG is not supported by the Zend Platform backend");
+                return false;
+                break;
+            case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG:
+                $idlist = null;
+                foreach ($tags as $tag) {
+                    $next_idlist = output_cache_get(self::TAGS_PREFIX.$tag, $this->_directives['lifetime']);
+                    if ($idlist) {
+                        $idlist = array_merge_recursive($idlist, $next_idlist);
+                    } else {
+                        $idlist = $next_idlist;
+                    }
+                    if (count($idlist) == 0) {
+                        // if ID list is already empty - we may skip checking other IDs
+                        $idlist = null;
+                        break;
+                    }
+                }
+                if ($idlist) {
+                    foreach ($idlist as $id) {
+                        output_cache_remove_key($id);
+                    }
+                }
+                return true;
+                break;
+            default:
+                Zend_Cache::throwException('Invalid mode for clean() method');
+                break;
+        }
+    }
+
+    /**
+     * Clean a directory and recursivly go over it's subdirectories
+     *
+     * Remove all the cached files that need to be cleaned (according to mode and files mtime)
+     *
+     * @param  string $dir  Path of directory ot clean
+     * @param  string $mode The same parameter as in Zend_Cache_Backend_ZendPlatform::clean()
+     * @return boolean True if ok
+     */
+    private function _clean($dir, $mode)
+    {
+        $d = @dir($dir);
+        if (!$d) {
+            return false;
+        }
+        $result = true;
+        while (false !== ($file = $d->read())) {
+            if ($file == '.' || $file == '..') {
+                continue;
+            }
+            $file = $d->path . $file;
+            if (is_dir($file)) {
+                $result = ($this->_clean($file .'/', $mode)) && ($result);
+            } else {
+                if ($mode == Zend_Cache::CLEANING_MODE_ALL) {
+                    $result = ($this->_remove($file)) && ($result);
+                } else if ($mode == Zend_Cache::CLEANING_MODE_OLD) {
+                    // Files older than lifetime get deleted from cache
+                    if ($this->_directives['lifetime'] !== null) {
+                        if ((time() - @filemtime($file)) > $this->_directives['lifetime']) {
+                            $result = ($this->_remove($file)) && ($result);
+                        }
+                    }
+                }
+            }
+        }
+        $d->close();
+        return $result;
+    }
+
+    /**
+     * Remove a file
+     *
+     * If we can't remove the file (because of locks or any problem), we will touch
+     * the file to invalidate it
+     *
+     * @param  string $file Complete file path
+     * @return boolean True if ok
+     */
+    private function _remove($file)
+    {
+        if (!@unlink($file)) {
+            # If we can't remove the file (because of locks or any problem), we will touch
+            # the file to invalidate it
+            $this->_log("Zend_Cache_Backend_ZendPlatform::_remove() : we can't remove $file => we are going to try to invalidate it");
+            if ($this->_directives['lifetime'] === null) {
+                return false;
+            }
+            if (!file_exists($file)) {
+                return false;
+            }
+            return @touch($file, time() - 2*abs($this->_directives['lifetime']));
+        }
+        return true;
+    }
+
+}
diff --git a/library/vendor/Zend/Cache/Backend/ZendServer.php b/library/vendor/Zend/Cache/Backend/ZendServer.php
new file mode 100644
index 0000000..6243d86
--- /dev/null
+++ b/library/vendor/Zend/Cache/Backend/ZendServer.php
@@ -0,0 +1,205 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+
+/** @see Zend_Cache_Backend_Interface */
+
+/** @see Zend_Cache_Backend */
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+abstract class Zend_Cache_Backend_ZendServer extends Zend_Cache_Backend implements Zend_Cache_Backend_Interface
+{
+    /**
+     * Available options
+     *
+     * =====> (string) namespace :
+     * Namespace to be used for chaching operations
+     *
+     * @var array available options
+     */
+    protected $_options = array(
+        'namespace' => 'zendframework'
+    );
+
+    /**
+     * Store data
+     *
+     * @param mixed  $data        Object to store
+     * @param string $id          Cache id
+     * @param int    $timeToLive  Time to live in seconds
+     * @throws Zend_Cache_Exception
+     */
+    abstract protected function _store($data, $id, $timeToLive);
+
+    /**
+     * Fetch data
+     *
+     * @param string $id          Cache id
+     * @throws Zend_Cache_Exception
+     */
+    abstract protected function _fetch($id);
+
+    /**
+     * Unset data
+     *
+     * @param string $id          Cache id
+     */
+    abstract protected function _unset($id);
+
+    /**
+     * Clear cache
+     */
+    abstract protected function _clear();
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * @param  string  $id                     cache id
+     * @param  boolean $doNotTestCacheValidity if set to true, the cache validity won't be tested
+     * @return string cached datas (or false)
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        $tmp = $this->_fetch($id);
+        if ($tmp !== null) {
+            return $tmp;
+        }
+        return false;
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param  string $id cache id
+     * @return mixed false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     * @throws Zend_Cache_Exception
+     */
+    public function test($id)
+    {
+        $tmp = $this->_fetch('internal-metadatas---' . $id);
+        if ($tmp !== false) {
+            if (!is_array($tmp) || !isset($tmp['mtime'])) {
+                Zend_Cache::throwException('Cache metadata for \'' . $id . '\' id is corrupted' );
+            }
+            return $tmp['mtime'];
+        }
+        return false;
+    }
+
+    /**
+     * Compute & return the expire time
+     *
+     * @return int expire time (unix timestamp)
+     */
+    private function _expireTime($lifetime)
+    {
+        if ($lifetime === null) {
+            return 9999999999;
+        }
+        return time() + $lifetime;
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param string $data datas to cache
+     * @param string $id cache id
+     * @param array $tags array of strings, the cache record will be tagged by each string entry
+     * @param int $specificLifetime if != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean true if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        $lifetime = $this->getLifetime($specificLifetime);
+        $metadatas = array(
+            'mtime' => time(),
+            'expire' => $this->_expireTime($lifetime),
+        );
+
+        if (count($tags) > 0) {
+            $this->_log('Zend_Cache_Backend_ZendServer::save() : tags are unsupported by the ZendServer backends');
+        }
+
+        return  $this->_store($data, $id, $lifetime) &&
+                $this->_store($metadatas, 'internal-metadatas---' . $id, $lifetime);
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id cache id
+     * @return boolean true if no problem
+     */
+    public function remove($id)
+    {
+        $result1 = $this->_unset($id);
+        $result2 = $this->_unset('internal-metadatas---' . $id);
+
+        return $result1 && $result2;
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * 'all' (default)  => remove all cache entries ($tags is not used)
+     * 'old'            => unsupported
+     * 'matchingTag'    => unsupported
+     * 'notMatchingTag' => unsupported
+     * 'matchingAnyTag' => unsupported
+     *
+     * @param  string $mode clean mode
+     * @param  array  $tags array of tags
+     * @throws Zend_Cache_Exception
+     * @return boolean true if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        switch ($mode) {
+            case Zend_Cache::CLEANING_MODE_ALL:
+                $this->_clear();
+                return true;
+                break;
+            case Zend_Cache::CLEANING_MODE_OLD:
+                $this->_log("Zend_Cache_Backend_ZendServer::clean() : CLEANING_MODE_OLD is unsupported by the Zend Server backends.");
+                break;
+            case Zend_Cache::CLEANING_MODE_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG:
+                $this->_clear();
+                $this->_log('Zend_Cache_Backend_ZendServer::clean() : tags are unsupported by the Zend Server backends.');
+                break;
+            default:
+                Zend_Cache::throwException('Invalid mode for clean() method');
+                break;
+        }
+    }
+}
diff --git a/library/vendor/Zend/Cache/Backend/ZendServer/Disk.php b/library/vendor/Zend/Cache/Backend/ZendServer/Disk.php
new file mode 100644
index 0000000..09cd126
--- /dev/null
+++ b/library/vendor/Zend/Cache/Backend/ZendServer/Disk.php
@@ -0,0 +1,99 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+
+/** @see Zend_Cache_Backend_Interface */
+
+/** @see Zend_Cache_Backend_ZendServer */
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_ZendServer_Disk extends Zend_Cache_Backend_ZendServer implements Zend_Cache_Backend_Interface
+{
+    /**
+     * Constructor
+     *
+     * @param  array $options associative array of options
+     * @throws Zend_Cache_Exception
+     */
+    public function __construct(array $options = array())
+    {
+        if (!function_exists('zend_disk_cache_store')) {
+            Zend_Cache::throwException('Zend_Cache_ZendServer_Disk backend has to be used within Zend Server environment.');
+        }
+        parent::__construct($options);
+    }
+
+    /**
+     * Store data
+     *
+     * @param mixed  $data        Object to store
+     * @param string $id          Cache id
+     * @param int    $timeToLive  Time to live in seconds
+     * @return boolean true if no problem
+     */
+    protected function _store($data, $id, $timeToLive)
+    {
+        if (zend_disk_cache_store($this->_options['namespace'] . '::' . $id,
+                                  $data,
+                                  $timeToLive) === false) {
+            $this->_log('Store operation failed.');
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Fetch data
+     *
+     * @param string $id Cache id
+     * @return mixed|null
+     */
+    protected function _fetch($id)
+    {
+        return zend_disk_cache_fetch($this->_options['namespace'] . '::' . $id);
+    }
+
+    /**
+     * Unset data
+     *
+     * @param string $id          Cache id
+     * @return boolean true if no problem
+     */
+    protected function _unset($id)
+    {
+        return zend_disk_cache_delete($this->_options['namespace'] . '::' . $id);
+    }
+
+    /**
+     * Clear cache
+     */
+    protected function _clear()
+    {
+        zend_disk_cache_clear($this->_options['namespace']);
+    }
+}
diff --git a/library/vendor/Zend/Cache/Backend/ZendServer/ShMem.php b/library/vendor/Zend/Cache/Backend/ZendServer/ShMem.php
new file mode 100644
index 0000000..5fe1894
--- /dev/null
+++ b/library/vendor/Zend/Cache/Backend/ZendServer/ShMem.php
@@ -0,0 +1,99 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+
+/** @see Zend_Cache_Backend_Interface */
+
+/** @see Zend_Cache_Backend_ZendServer */
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_ZendServer_ShMem extends Zend_Cache_Backend_ZendServer implements Zend_Cache_Backend_Interface
+{
+    /**
+     * Constructor
+     *
+     * @param  array $options associative array of options
+     * @throws Zend_Cache_Exception
+     */
+    public function __construct(array $options = array())
+    {
+        if (!function_exists('zend_shm_cache_store')) {
+            Zend_Cache::throwException('Zend_Cache_ZendServer_ShMem backend has to be used within Zend Server environment.');
+        }
+        parent::__construct($options);
+    }
+
+    /**
+     * Store data
+     *
+     * @param mixed  $data       Object to store
+     * @param string $id         Cache id
+     * @param int    $timeToLive Time to live in seconds
+     * @return bool
+     */
+    protected function _store($data, $id, $timeToLive)
+    {
+        if (zend_shm_cache_store($this->_options['namespace'] . '::' . $id,
+                                  $data,
+                                  $timeToLive) === false) {
+            $this->_log('Store operation failed.');
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Fetch data
+     *
+     * @param string $id Cache id
+     * @return mixed|null
+     */
+    protected function _fetch($id)
+    {
+        return zend_shm_cache_fetch($this->_options['namespace'] . '::' . $id);
+    }
+
+    /**
+     * Unset data
+     *
+     * @param string $id          Cache id
+     * @return boolean true if no problem
+     */
+    protected function _unset($id)
+    {
+        return zend_shm_cache_delete($this->_options['namespace'] . '::' . $id);
+    }
+
+    /**
+     * Clear cache
+     */
+    protected function _clear()
+    {
+        zend_shm_cache_clear($this->_options['namespace']);
+    }
+}
diff --git a/library/vendor/Zend/Cache/Core.php b/library/vendor/Zend/Cache/Core.php
new file mode 100644
index 0000000..833f247
--- /dev/null
+++ b/library/vendor/Zend/Cache/Core.php
@@ -0,0 +1,762 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+
+/**
+ * @package    Zend_Cache
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Core
+{
+    /**
+     * Messages
+     */
+    const BACKEND_NOT_SUPPORTS_TAG = 'tags are not supported by the current backend';
+    const BACKEND_NOT_IMPLEMENTS_EXTENDED_IF = 'Current backend doesn\'t implement the Zend_Cache_Backend_ExtendedInterface, so this method is not available';
+
+    /**
+     * Backend Object
+     *
+     * @var Zend_Cache_Backend_Interface $_backend
+     */
+    protected $_backend = null;
+
+    /**
+     * Available options
+     *
+     * ====> (boolean) write_control :
+     * - Enable / disable write control (the cache is read just after writing to detect corrupt entries)
+     * - Enable write control will lightly slow the cache writing but not the cache reading
+     * Write control can detect some corrupt cache files but maybe it's not a perfect control
+     *
+     * ====> (boolean) caching :
+     * - Enable / disable caching
+     * (can be very useful for the debug of cached scripts)
+     *
+     * =====> (string) cache_id_prefix :
+     * - prefix for cache ids (namespace)
+     *
+     * ====> (boolean) automatic_serialization :
+     * - Enable / disable automatic serialization
+     * - It can be used to save directly datas which aren't strings (but it's slower)
+     *
+     * ====> (int) automatic_cleaning_factor :
+     * - Disable / Tune the automatic cleaning process
+     * - The automatic cleaning process destroy too old (for the given life time)
+     *   cache files when a new cache file is written :
+     *     0               => no automatic cache cleaning
+     *     1               => systematic cache cleaning
+     *     x (integer) > 1 => automatic cleaning randomly 1 times on x cache write
+     *
+     * ====> (int) lifetime :
+     * - Cache lifetime (in seconds)
+     * - If null, the cache is valid forever.
+     *
+     * ====> (boolean) logging :
+     * - If set to true, logging is activated (but the system is slower)
+     *
+     * ====> (boolean) ignore_user_abort
+     * - If set to true, the core will set the ignore_user_abort PHP flag inside the
+     *   save() method to avoid cache corruptions in some cases (default false)
+     *
+     * @var array $_options available options
+     */
+    protected $_options = array(
+        'write_control'             => true,
+        'caching'                   => true,
+        'cache_id_prefix'           => null,
+        'automatic_serialization'   => false,
+        'automatic_cleaning_factor' => 10,
+        'lifetime'                  => 3600,
+        'logging'                   => false,
+        'logger'                    => null,
+        'ignore_user_abort'         => false
+    );
+
+    /**
+     * Array of options which have to be transfered to backend
+     *
+     * @var array $_directivesList
+     */
+    protected static $_directivesList = array('lifetime', 'logging', 'logger');
+
+    /**
+     * Not used for the core, just a sort a hint to get a common setOption() method (for the core and for frontends)
+     *
+     * @var array $_specificOptions
+     */
+    protected $_specificOptions = array();
+
+    /**
+     * Last used cache id
+     *
+     * @var string $_lastId
+     */
+    private $_lastId = null;
+
+    /**
+     * True if the backend implements Zend_Cache_Backend_ExtendedInterface
+     *
+     * @var boolean $_extendedBackend
+     */
+    protected $_extendedBackend = false;
+
+    /**
+     * Array of capabilities of the backend (only if it implements Zend_Cache_Backend_ExtendedInterface)
+     *
+     * @var array
+     */
+    protected $_backendCapabilities = array();
+
+    /**
+     * Constructor
+     *
+     * @param  array|Zend_Config $options Associative array of options or Zend_Config instance
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function __construct($options = array())
+    {
+        if ($options instanceof Zend_Config) {
+            $options = $options->toArray();
+        }
+        if (!is_array($options)) {
+            Zend_Cache::throwException("Options passed were not an array"
+            . " or Zend_Config instance.");
+        }
+        foreach ($options as $name => $value) {
+            $this->setOption($name, $value);
+        }
+        $this->_loggerSanity();
+    }
+
+    /**
+     * Set options using an instance of type Zend_Config
+     *
+     * @param Zend_Config $config
+     * @return Zend_Cache_Core
+     */
+    public function setConfig(Zend_Config $config)
+    {
+        $options = $config->toArray();
+        foreach ($options as $name => $value) {
+            $this->setOption($name, $value);
+        }
+        return $this;
+    }
+
+    /**
+     * Set the backend
+     *
+     * @param  Zend_Cache_Backend $backendObject
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function setBackend(Zend_Cache_Backend $backendObject)
+    {
+        $this->_backend= $backendObject;
+        // some options (listed in $_directivesList) have to be given
+        // to the backend too (even if they are not "backend specific")
+        $directives = array();
+        foreach (Zend_Cache_Core::$_directivesList as $directive) {
+            $directives[$directive] = $this->_options[$directive];
+        }
+        $this->_backend->setDirectives($directives);
+        if (in_array('Zend_Cache_Backend_ExtendedInterface', class_implements($this->_backend))) {
+            $this->_extendedBackend = true;
+            $this->_backendCapabilities = $this->_backend->getCapabilities();
+        }
+
+    }
+
+    /**
+     * Returns the backend
+     *
+     * @return Zend_Cache_Backend backend object
+     */
+    public function getBackend()
+    {
+        return $this->_backend;
+    }
+
+    /**
+     * Public frontend to set an option
+     *
+     * There is an additional validation (relatively to the protected _setOption method)
+     *
+     * @param  string $name  Name of the option
+     * @param  mixed  $value Value of the option
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function setOption($name, $value)
+    {
+        if (!is_string($name)) {
+            Zend_Cache::throwException("Incorrect option name!");
+        }
+        $name = strtolower($name);
+        if (array_key_exists($name, $this->_options)) {
+            // This is a Core option
+            $this->_setOption($name, $value);
+            return;
+        }
+        if (array_key_exists($name, $this->_specificOptions)) {
+            // This a specic option of this frontend
+            $this->_specificOptions[$name] = $value;
+            return;
+        }
+    }
+
+    /**
+     * Public frontend to get an option value
+     *
+     * @param  string $name  Name of the option
+     * @throws Zend_Cache_Exception
+     * @return mixed option value
+     */
+    public function getOption($name)
+    {
+        $name = strtolower($name);
+
+        if (array_key_exists($name, $this->_options)) {
+            // This is a Core option
+            return $this->_options[$name];
+        }
+
+        if (array_key_exists($name, $this->_specificOptions)) {
+            // This a specic option of this frontend
+            return $this->_specificOptions[$name];
+        }
+
+        Zend_Cache::throwException("Incorrect option name : $name");
+    }
+
+    /**
+     * Set an option
+     *
+     * @param  string $name  Name of the option
+     * @param  mixed  $value Value of the option
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    private function _setOption($name, $value)
+    {
+        if (!is_string($name) || !array_key_exists($name, $this->_options)) {
+            Zend_Cache::throwException("Incorrect option name : $name");
+        }
+        if ($name == 'lifetime' && empty($value)) {
+            $value = null;
+        }
+        $this->_options[$name] = $value;
+    }
+
+    /**
+     * Force a new lifetime
+     *
+     * The new value is set for the core/frontend but for the backend too (directive)
+     *
+     * @param  int $newLifetime New lifetime (in seconds)
+     * @return void
+     */
+    public function setLifetime($newLifetime)
+    {
+        $this->_options['lifetime'] = $newLifetime;
+        $this->_backend->setDirectives(array(
+            'lifetime' => $newLifetime
+        ));
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @param  boolean $doNotUnserialize       Do not serialize (even if automatic_serialization is true) => for internal use
+     * @return mixed|false Cached datas
+     */
+    public function load($id, $doNotTestCacheValidity = false, $doNotUnserialize = false)
+    {
+        if (!$this->_options['caching']) {
+            return false;
+        }
+        $id = $this->_id($id); // cache id may need prefix
+        $this->_lastId = $id;
+        $this->_validateIdOrTag($id);
+
+        $this->_log("Zend_Cache_Core: load item '{$id}'", 7);
+        $data = $this->_backend->load($id, $doNotTestCacheValidity);
+        if ($data===false) {
+            // no cache available
+            return false;
+        }
+        if ((!$doNotUnserialize) && $this->_options['automatic_serialization']) {
+            // we need to unserialize before sending the result
+            return unserialize($data);
+        }
+        return $data;
+    }
+
+    /**
+     * Test if a cache is available for the given id
+     *
+     * @param  string $id Cache id
+     * @return int|false Last modified time of cache entry if it is available, false otherwise
+     */
+    public function test($id)
+    {
+        if (!$this->_options['caching']) {
+            return false;
+        }
+        $id = $this->_id($id); // cache id may need prefix
+        $this->_validateIdOrTag($id);
+        $this->_lastId = $id;
+
+        $this->_log("Zend_Cache_Core: test item '{$id}'", 7);
+        return $this->_backend->test($id);
+    }
+
+    /**
+     * Save some data in a cache
+     *
+     * @param  mixed $data           Data to put in cache (can be another type than string if automatic_serialization is on)
+     * @param  string $id             Cache id (if not set, the last cache id will be used)
+     * @param  array $tags           Cache tags
+     * @param  int $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @param  int   $priority         integer between 0 (very low priority) and 10 (maximum priority) used by some particular backends
+     * @throws Zend_Cache_Exception
+     * @return boolean True if no problem
+     */
+    public function save($data, $id = null, $tags = array(), $specificLifetime = false, $priority = 8)
+    {
+        if (!$this->_options['caching']) {
+            return true;
+        }
+        if ($id === null) {
+            $id = $this->_lastId;
+        } else {
+            $id = $this->_id($id);
+        }
+        $this->_validateIdOrTag($id);
+        $this->_validateTagsArray($tags);
+        if ($this->_options['automatic_serialization']) {
+            // we need to serialize datas before storing them
+            $data = serialize($data);
+        } else {
+            if (!is_string($data)) {
+                Zend_Cache::throwException("Datas must be string or set automatic_serialization = true");
+            }
+        }
+
+        // automatic cleaning
+        if ($this->_options['automatic_cleaning_factor'] > 0) {
+            $rand = rand(1, $this->_options['automatic_cleaning_factor']);
+            if ($rand==1) {
+                //  new way                 || deprecated way
+                if ($this->_extendedBackend || method_exists($this->_backend, 'isAutomaticCleaningAvailable')) {
+                    $this->_log("Zend_Cache_Core::save(): automatic cleaning running", 7);
+                    $this->clean(Zend_Cache::CLEANING_MODE_OLD);
+                } else {
+                    $this->_log("Zend_Cache_Core::save(): automatic cleaning is not available/necessary with current backend", 4);
+                }
+            }
+        }
+
+        $this->_log("Zend_Cache_Core: save item '{$id}'", 7);
+        if ($this->_options['ignore_user_abort']) {
+            $abort = ignore_user_abort(true);
+        }
+        if (($this->_extendedBackend) && ($this->_backendCapabilities['priority'])) {
+            $result = $this->_backend->save($data, $id, $tags, $specificLifetime, $priority);
+        } else {
+            $result = $this->_backend->save($data, $id, $tags, $specificLifetime);
+        }
+        if ($this->_options['ignore_user_abort']) {
+            ignore_user_abort($abort);
+        }
+
+        if (!$result) {
+            // maybe the cache is corrupted, so we remove it !
+            $this->_log("Zend_Cache_Core::save(): failed to save item '{$id}' -> removing it", 4);
+            $this->_backend->remove($id);
+            return false;
+        }
+
+        if ($this->_options['write_control']) {
+            $data2 = $this->_backend->load($id, true);
+            if ($data!=$data2) {
+                $this->_log("Zend_Cache_Core::save(): write control of item '{$id}' failed -> removing it", 4);
+                $this->_backend->remove($id);
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Remove a cache
+     *
+     * @param  string $id Cache id to remove
+     * @return boolean True if ok
+     */
+    public function remove($id)
+    {
+        if (!$this->_options['caching']) {
+            return true;
+        }
+        $id = $this->_id($id); // cache id may need prefix
+        $this->_validateIdOrTag($id);
+
+        $this->_log("Zend_Cache_Core: remove item '{$id}'", 7);
+        return $this->_backend->remove($id);
+    }
+
+    /**
+     * Clean cache entries
+     *
+     * Available modes are :
+     * 'all' (default)  => remove all cache entries ($tags is not used)
+     * 'old'            => remove too old cache entries ($tags is not used)
+     * 'matchingTag'    => remove cache entries matching all given tags
+     *                     ($tags can be an array of strings or a single string)
+     * 'notMatchingTag' => remove cache entries not matching one of the given tags
+     *                     ($tags can be an array of strings or a single string)
+     * 'matchingAnyTag' => remove cache entries matching any given tags
+     *                     ($tags can be an array of strings or a single string)
+     *
+     * @param  string       $mode
+     * @param  array|string $tags
+     * @throws Zend_Cache_Exception
+     * @return boolean True if ok
+     */
+    public function clean($mode = 'all', $tags = array())
+    {
+        if (!$this->_options['caching']) {
+            return true;
+        }
+        if (!in_array($mode, array(Zend_Cache::CLEANING_MODE_ALL,
+                                   Zend_Cache::CLEANING_MODE_OLD,
+                                   Zend_Cache::CLEANING_MODE_MATCHING_TAG,
+                                   Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG,
+                                   Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG))) {
+            Zend_Cache::throwException('Invalid cleaning mode');
+        }
+        $this->_validateTagsArray($tags);
+
+        return $this->_backend->clean($mode, $tags);
+    }
+
+    /**
+     * Return an array of stored cache ids which match given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching cache ids (string)
+     */
+    public function getIdsMatchingTags($tags = array())
+    {
+        if (!$this->_extendedBackend) {
+            Zend_Cache::throwException(self::BACKEND_NOT_IMPLEMENTS_EXTENDED_IF);
+        }
+        if (!($this->_backendCapabilities['tags'])) {
+            Zend_Cache::throwException(self::BACKEND_NOT_SUPPORTS_TAG);
+        }
+
+        $ids = $this->_backend->getIdsMatchingTags($tags);
+
+        // we need to remove cache_id_prefix from ids (see #ZF-6178, #ZF-7600)
+        if (isset($this->_options['cache_id_prefix']) && $this->_options['cache_id_prefix'] !== '') {
+            $prefix    = & $this->_options['cache_id_prefix'];
+            $prefixLen = strlen($prefix);
+            foreach ($ids as &$id) {
+                if (strpos($id, $prefix) === 0) {
+                    $id = substr($id, $prefixLen);
+                }
+            }
+        }
+
+        return $ids;
+    }
+
+    /**
+     * Return an array of stored cache ids which don't match given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of not matching cache ids (string)
+     */
+    public function getIdsNotMatchingTags($tags = array())
+    {
+        if (!$this->_extendedBackend) {
+            Zend_Cache::throwException(self::BACKEND_NOT_IMPLEMENTS_EXTENDED_IF);
+        }
+        if (!($this->_backendCapabilities['tags'])) {
+            Zend_Cache::throwException(self::BACKEND_NOT_SUPPORTS_TAG);
+        }
+
+        $ids = $this->_backend->getIdsNotMatchingTags($tags);
+
+        // we need to remove cache_id_prefix from ids (see #ZF-6178, #ZF-7600)
+        if (isset($this->_options['cache_id_prefix']) && $this->_options['cache_id_prefix'] !== '') {
+            $prefix    = & $this->_options['cache_id_prefix'];
+            $prefixLen = strlen($prefix);
+            foreach ($ids as &$id) {
+                if (strpos($id, $prefix) === 0) {
+                    $id = substr($id, $prefixLen);
+                }
+            }
+        }
+
+        return $ids;
+    }
+
+    /**
+     * Return an array of stored cache ids which match any given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching any cache ids (string)
+     */
+    public function getIdsMatchingAnyTags($tags = array())
+    {
+        if (!$this->_extendedBackend) {
+            Zend_Cache::throwException(self::BACKEND_NOT_IMPLEMENTS_EXTENDED_IF);
+        }
+        if (!($this->_backendCapabilities['tags'])) {
+            Zend_Cache::throwException(self::BACKEND_NOT_SUPPORTS_TAG);
+        }
+
+        $ids = $this->_backend->getIdsMatchingAnyTags($tags);
+
+        // we need to remove cache_id_prefix from ids (see #ZF-6178, #ZF-7600)
+        if (isset($this->_options['cache_id_prefix']) && $this->_options['cache_id_prefix'] !== '') {
+            $prefix    = & $this->_options['cache_id_prefix'];
+            $prefixLen = strlen($prefix);
+            foreach ($ids as &$id) {
+                if (strpos($id, $prefix) === 0) {
+                    $id = substr($id, $prefixLen);
+                }
+            }
+        }
+
+        return $ids;
+    }
+
+    /**
+     * Return an array of stored cache ids
+     *
+     * @return array array of stored cache ids (string)
+     */
+    public function getIds()
+    {
+        if (!$this->_extendedBackend) {
+            Zend_Cache::throwException(self::BACKEND_NOT_IMPLEMENTS_EXTENDED_IF);
+        }
+
+        $ids = $this->_backend->getIds();
+
+        // we need to remove cache_id_prefix from ids (see #ZF-6178, #ZF-7600)
+        if (isset($this->_options['cache_id_prefix']) && $this->_options['cache_id_prefix'] !== '') {
+            $prefix    = & $this->_options['cache_id_prefix'];
+            $prefixLen = strlen($prefix);
+            foreach ($ids as &$id) {
+                if (strpos($id, $prefix) === 0) {
+                    $id = substr($id, $prefixLen);
+                }
+            }
+        }
+
+        return $ids;
+    }
+
+    /**
+     * Return an array of stored tags
+     *
+     * @return array array of stored tags (string)
+     */
+    public function getTags()
+    {
+        if (!$this->_extendedBackend) {
+            Zend_Cache::throwException(self::BACKEND_NOT_IMPLEMENTS_EXTENDED_IF);
+        }
+        if (!($this->_backendCapabilities['tags'])) {
+            Zend_Cache::throwException(self::BACKEND_NOT_SUPPORTS_TAG);
+        }
+        return $this->_backend->getTags();
+    }
+
+    /**
+     * Return the filling percentage of the backend storage
+     *
+     * @return int integer between 0 and 100
+     */
+    public function getFillingPercentage()
+    {
+        if (!$this->_extendedBackend) {
+            Zend_Cache::throwException(self::BACKEND_NOT_IMPLEMENTS_EXTENDED_IF);
+        }
+        return $this->_backend->getFillingPercentage();
+    }
+
+    /**
+     * Return an array of metadatas for the given cache id
+     *
+     * The array will include these keys :
+     * - expire : the expire timestamp
+     * - tags : a string array of tags
+     * - mtime : timestamp of last modification time
+     *
+     * @param string $id cache id
+     * @return array array of metadatas (false if the cache id is not found)
+     */
+    public function getMetadatas($id)
+    {
+        if (!$this->_extendedBackend) {
+            Zend_Cache::throwException(self::BACKEND_NOT_IMPLEMENTS_EXTENDED_IF);
+        }
+        $id = $this->_id($id); // cache id may need prefix
+        return $this->_backend->getMetadatas($id);
+    }
+
+    /**
+     * Give (if possible) an extra lifetime to the given cache id
+     *
+     * @param string $id cache id
+     * @param int $extraLifetime
+     * @return boolean true if ok
+     */
+    public function touch($id, $extraLifetime)
+    {
+        if (!$this->_extendedBackend) {
+            Zend_Cache::throwException(self::BACKEND_NOT_IMPLEMENTS_EXTENDED_IF);
+        }
+        $id = $this->_id($id); // cache id may need prefix
+
+        $this->_log("Zend_Cache_Core: touch item '{$id}'", 7);
+        return $this->_backend->touch($id, $extraLifetime);
+    }
+
+    /**
+     * Validate a cache id or a tag (security, reliable filenames, reserved prefixes...)
+     *
+     * Throw an exception if a problem is found
+     *
+     * @param  string $string Cache id or tag
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    protected function _validateIdOrTag($string)
+    {
+        if (!is_string($string)) {
+            Zend_Cache::throwException('Invalid id or tag : must be a string');
+        }
+        if (substr($string, 0, 9) == 'internal-') {
+            Zend_Cache::throwException('"internal-*" ids or tags are reserved');
+        }
+        if (!preg_match('~^[a-zA-Z0-9_]+$~D', $string)) {
+            Zend_Cache::throwException("Invalid id or tag '$string' : must use only [a-zA-Z0-9_]");
+        }
+    }
+
+    /**
+     * Validate a tags array (security, reliable filenames, reserved prefixes...)
+     *
+     * Throw an exception if a problem is found
+     *
+     * @param  array $tags Array of tags
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    protected function _validateTagsArray($tags)
+    {
+        if (!is_array($tags)) {
+            Zend_Cache::throwException('Invalid tags array : must be an array');
+        }
+        foreach($tags as $tag) {
+            $this->_validateIdOrTag($tag);
+        }
+        reset($tags);
+    }
+
+    /**
+     * Make sure if we enable logging that the Zend_Log class
+     * is available.
+     * Create a default log object if none is set.
+     *
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    protected function _loggerSanity()
+    {
+        if (!isset($this->_options['logging']) || !$this->_options['logging']) {
+            return;
+        }
+
+        if (isset($this->_options['logger']) && $this->_options['logger'] instanceof Zend_Log) {
+            return;
+        }
+
+        // Create a default logger to the standard output stream
+        $logger = new Zend_Log(new Zend_Log_Writer_Stream('php://output'));
+        $logger->addFilter(new Zend_Log_Filter_Priority(Zend_Log::WARN, '<='));
+        $this->_options['logger'] = $logger;
+    }
+
+    /**
+     * Log a message at the WARN (4) priority.
+     *
+     * @param string $message
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    protected function _log($message, $priority = 4)
+    {
+        if (!$this->_options['logging']) {
+            return;
+        }
+        if (!(isset($this->_options['logger']) || $this->_options['logger'] instanceof Zend_Log)) {
+            Zend_Cache::throwException('Logging is enabled but logger is not set');
+        }
+        $logger = $this->_options['logger'];
+        $logger->log($message, $priority);
+    }
+
+    /**
+     * Make and return a cache id
+     *
+     * Checks 'cache_id_prefix' and returns new id with prefix or simply the id if null
+     *
+     * @param  string $id Cache id
+     * @return string Cache id (with or without prefix)
+     */
+    protected function _id($id)
+    {
+        if (($id !== null) && isset($this->_options['cache_id_prefix'])) {
+            return $this->_options['cache_id_prefix'] . $id; // return with prefix
+        }
+        return $id; // no prefix, just return the $id passed
+    }
+
+}
diff --git a/library/vendor/Zend/Cache/Exception.php b/library/vendor/Zend/Cache/Exception.php
new file mode 100644
index 0000000..bc3c815
--- /dev/null
+++ b/library/vendor/Zend/Cache/Exception.php
@@ -0,0 +1,31 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+/**
+ * @see Zend_Exception
+ */
+
+/**
+ * @package    Zend_Cache
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Exception extends Zend_Exception {}
diff --git a/library/vendor/Zend/Cache/Frontend/Capture.php b/library/vendor/Zend/Cache/Frontend/Capture.php
new file mode 100644
index 0000000..4b70da4
--- /dev/null
+++ b/library/vendor/Zend/Cache/Frontend/Capture.php
@@ -0,0 +1,87 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+
+/**
+ * @see Zend_Cache_Core
+ */
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Frontend_Capture extends Zend_Cache_Core
+{
+    /**
+     * Page identifiers
+     * @var array
+     */
+    protected $_idStack = array();
+
+    /**
+     * Tags
+     * @var array
+     */
+    protected $_tags = array();
+
+    protected $_extension = null;
+
+    /**
+     * Start the cache
+     *
+     * @param  string  $id Cache id
+     * @return mixed True if the cache is hit (false else) with $echoData=true (default) ; string else (datas)
+     */
+    public function start($id, array $tags, $extension = null)
+    {
+        $this->_tags = $tags;
+        $this->_extension = $extension;
+        ob_start(array($this, '_flush'));
+        ob_implicit_flush(false);
+        $this->_idStack[] = $id;
+        return false;
+    }
+
+    /**
+     * callback for output buffering
+     * (shouldn't really be called manually)
+     *
+     * @param  string $data Buffered output
+     * @return string Data to send to browser
+     */
+    public function _flush($data)
+    {
+        $id = array_pop($this->_idStack);
+        if ($id === null) {
+            Zend_Cache::throwException('use of _flush() without a start()');
+        }
+        if ($this->_extension) {
+            $this->save(serialize(array($data, $this->_extension)), $id, $this->_tags);
+        } else {
+            $this->save($data, $id, $this->_tags);
+        }
+        return $data;
+    }
+}
diff --git a/library/vendor/Zend/Cache/Frontend/Class.php b/library/vendor/Zend/Cache/Frontend/Class.php
new file mode 100644
index 0000000..c7208a1
--- /dev/null
+++ b/library/vendor/Zend/Cache/Frontend/Class.php
@@ -0,0 +1,274 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+/**
+ * @see Zend_Cache_Core
+ */
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd New BSD License
+ */
+class Zend_Cache_Frontend_Class extends Zend_Cache_Core
+{
+    /**
+     * Available options
+     *
+     * ====> (mixed) cached_entity :
+     * - if set to a class name, we will cache an abstract class and will use only static calls
+     * - if set to an object, we will cache this object methods
+     *
+     * ====> (boolean) cache_by_default :
+     * - if true, method calls will be cached by default
+     *
+     * ====> (array) cached_methods :
+     * - an array of method names which will be cached (even if cache_by_default = false)
+     *
+     * ====> (array) non_cached_methods :
+     * - an array of method names which won't be cached (even if cache_by_default = true)
+     *
+     * @var array available options
+     */
+    protected $_specificOptions = array(
+        'cached_entity'      => null,
+        'cache_by_default'   => true,
+        'cached_methods'     => array(),
+        'non_cached_methods' => array()
+    );
+
+    /**
+     * Tags array
+     *
+     * @var array
+     */
+    protected $_tags = array();
+
+    /**
+     * SpecificLifetime value
+     *
+     * false => no specific life time
+     *
+     * @var bool|int
+     */
+    protected $_specificLifetime = false;
+
+    /**
+     * The cached object or the name of the cached abstract class
+     *
+     * @var mixed
+     */
+    protected $_cachedEntity = null;
+
+     /**
+      * The class name of the cached object or cached abstract class
+      *
+      * Used to differentiate between different classes with the same method calls.
+      *
+      * @var string
+      */
+    protected $_cachedEntityLabel = '';
+
+    /**
+     * Priority (used by some particular backends)
+     *
+     * @var int
+     */
+    protected $_priority = 8;
+
+    /**
+     * Constructor
+     *
+     * @param  array $options Associative array of options
+     * @throws Zend_Cache_Exception
+     */
+    public function __construct(array $options = array())
+    {
+        foreach ($options as $name => $value) {
+            $this->setOption($name, $value);
+        }
+        if ($this->_specificOptions['cached_entity'] === null) {
+            Zend_Cache::throwException('cached_entity must be set !');
+        }
+        $this->setCachedEntity($this->_specificOptions['cached_entity']);
+        $this->setOption('automatic_serialization', true);
+    }
+
+    /**
+     * Set a specific life time
+     *
+     * @param  bool|int $specificLifetime
+     * @return void
+     */
+    public function setSpecificLifetime($specificLifetime = false)
+    {
+        $this->_specificLifetime = $specificLifetime;
+    }
+
+    /**
+     * Set the priority (used by some particular backends)
+     *
+     * @param int $priority integer between 0 (very low priority) and 10 (maximum priority)
+     */
+    public function setPriority($priority)
+    {
+        $this->_priority = $priority;
+    }
+
+    /**
+     * Public frontend to set an option
+     *
+     * Just a wrapper to get a specific behaviour for cached_entity
+     *
+     * @param  string $name  Name of the option
+     * @param  mixed  $value Value of the option
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function setOption($name, $value)
+    {
+        if ($name == 'cached_entity') {
+            $this->setCachedEntity($value);
+        } else {
+            parent::setOption($name, $value);
+        }
+    }
+
+    /**
+     * Specific method to set the cachedEntity
+     *
+     * if set to a class name, we will cache an abstract class and will use only static calls
+     * if set to an object, we will cache this object methods
+     *
+     * @param mixed $cachedEntity
+     */
+    public function setCachedEntity($cachedEntity)
+    {
+        if (!is_string($cachedEntity) && !is_object($cachedEntity)) {
+            Zend_Cache::throwException(
+                'cached_entity must be an object or a class name'
+            );
+        }
+
+        $this->_cachedEntity                     = $cachedEntity;
+        $this->_specificOptions['cached_entity'] = $cachedEntity;
+
+        if (is_string($this->_cachedEntity)) {
+            $this->_cachedEntityLabel = $this->_cachedEntity;
+        } else {
+            $ro = new ReflectionObject($this->_cachedEntity);
+            $this->_cachedEntityLabel = $ro->getName();
+        }
+    }
+
+    /**
+     * Set the cache array
+     *
+     * @param  array $tags
+     * @return void
+     */
+    public function setTagsArray($tags = array())
+    {
+        $this->_tags = $tags;
+    }
+
+    /**
+     * Main method : call the specified method or get the result from cache
+     *
+     * @param  string $name       Method name
+     * @param  array  $parameters Method parameters
+     * @return mixed Result
+     * @throws Exception
+     */
+    public function __call($name, $parameters)
+    {
+        $callback = array($this->_cachedEntity, $name);
+
+        if (!is_callable($callback, false)) {
+            Zend_Cache::throwException('Invalid callback');
+        }
+
+        $cacheBool1 = $this->_specificOptions['cache_by_default'];
+        $cacheBool2 = in_array($name, $this->_specificOptions['cached_methods']);
+        $cacheBool3 = in_array($name, $this->_specificOptions['non_cached_methods']);
+        $cache      = (($cacheBool1 || $cacheBool2) && (!$cacheBool3));
+
+        if (!$cache) {
+            // We do not have not cache
+            return call_user_func_array($callback, $parameters);
+        }
+
+        $id = $this->makeId($name, $parameters);
+        if (($rs = $this->load($id)) && (array_key_exists(0, $rs))
+            && (array_key_exists(1, $rs))
+        ) {
+            // A cache is available
+            $output = $rs[0];
+            $return = $rs[1];
+        } else {
+            // A cache is not available (or not valid for this frontend)
+            ob_start();
+            ob_implicit_flush(false);
+
+            try {
+                $return = call_user_func_array($callback, $parameters);
+                $output = ob_get_clean();
+                $data   = array($output, $return);
+
+                $this->save(
+                    $data, $id, $this->_tags, $this->_specificLifetime,
+                    $this->_priority
+                );
+            } catch (Exception $e) {
+                ob_end_clean();
+                throw $e;
+            }
+        }
+
+        echo $output;
+        return $return;
+    }
+
+    /**
+     * ZF-9970
+     *
+     * @deprecated
+     */
+    private function _makeId($name, $args)
+    {
+        return $this->makeId($name, $args);
+    }
+
+    /**
+     * Make a cache id from the method name and parameters
+     *
+     * @param  string $name Method name
+     * @param  array  $args Method parameters
+     * @return string Cache id
+     */
+    public function makeId($name, array $args = array())
+    {
+        return md5($this->_cachedEntityLabel . '__' . $name . '__' . serialize($args));
+    }
+}
diff --git a/library/vendor/Zend/Cache/Frontend/File.php b/library/vendor/Zend/Cache/Frontend/File.php
new file mode 100644
index 0000000..98cd5a3
--- /dev/null
+++ b/library/vendor/Zend/Cache/Frontend/File.php
@@ -0,0 +1,221 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+
+/**
+ * @see Zend_Cache_Core
+ */
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Frontend_File extends Zend_Cache_Core
+{
+
+    /**
+     * Consts for master_files_mode
+     */
+    const MODE_AND = 'AND';
+    const MODE_OR  = 'OR';
+
+    /**
+     * Available options
+     *
+     * ====> (string) master_file :
+     * - a complete path of the master file
+     * - deprecated (see master_files)
+     *
+     * ====> (array) master_files :
+     * - an array of complete path of master files
+     * - this option has to be set !
+     *
+     * ====> (string) master_files_mode :
+     * - Zend_Cache_Frontend_File::MODE_AND or Zend_Cache_Frontend_File::MODE_OR
+     * - if MODE_AND, then all master files have to be touched to get a cache invalidation
+     * - if MODE_OR (default), then a single touched master file is enough to get a cache invalidation
+     *
+     * ====> (boolean) ignore_missing_master_files
+     * - if set to true, missing master files are ignored silently
+     * - if set to false (default), an exception is thrown if there is a missing master file
+     * @var array available options
+     */
+    protected $_specificOptions = array(
+        'master_file' => null,
+        'master_files' => null,
+        'master_files_mode' => 'OR',
+        'ignore_missing_master_files' => false
+    );
+
+    /**
+     * Master file mtimes
+     *
+     * Array of int
+     *
+     * @var array
+     */
+    private $_masterFile_mtimes = null;
+
+    /**
+     * Constructor
+     *
+     * @param  array $options Associative array of options
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        foreach ($options as $name => $value) {
+            $this->setOption($name, $value);
+        }
+        if (!isset($this->_specificOptions['master_files'])) {
+            Zend_Cache::throwException('master_files option must be set');
+        }
+    }
+
+    /**
+     * Change the master_files option
+     *
+     * @param array $masterFiles the complete paths and name of the master files
+     */
+    public function setMasterFiles(array $masterFiles)
+    {
+        $this->_specificOptions['master_file']  = null; // to keep a compatibility
+        $this->_specificOptions['master_files'] = null;
+        $this->_masterFile_mtimes = array();
+
+        clearstatcache();
+        $i = 0;
+        foreach ($masterFiles as $masterFile) {
+            if (file_exists($masterFile)) {
+                $mtime = filemtime($masterFile);
+            } else {
+                $mtime = false;
+            }
+
+            if (!$this->_specificOptions['ignore_missing_master_files'] && !$mtime) {
+                Zend_Cache::throwException('Unable to read master_file : ' . $masterFile);
+            }
+
+            $this->_masterFile_mtimes[$i] = $mtime;
+            $this->_specificOptions['master_files'][$i] = $masterFile;
+            if ($i === 0) { // to keep a compatibility
+                $this->_specificOptions['master_file'] = $masterFile;
+            }
+
+            $i++;
+        }
+    }
+
+    /**
+     * Change the master_file option
+     *
+     * To keep the compatibility
+     *
+     * @deprecated
+     * @param string $masterFile the complete path and name of the master file
+     */
+    public function setMasterFile($masterFile)
+    {
+          $this->setMasterFiles(array($masterFile));
+    }
+
+    /**
+     * Public frontend to set an option
+     *
+     * Just a wrapper to get a specific behaviour for master_file
+     *
+     * @param  string $name  Name of the option
+     * @param  mixed  $value Value of the option
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function setOption($name, $value)
+    {
+        if ($name == 'master_file') {
+            $this->setMasterFile($value);
+        } else if ($name == 'master_files') {
+            $this->setMasterFiles($value);
+        } else {
+            parent::setOption($name, $value);
+        }
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @param  boolean $doNotUnserialize       Do not serialize (even if automatic_serialization is true) => for internal use
+     * @return mixed|false Cached datas
+     */
+    public function load($id, $doNotTestCacheValidity = false, $doNotUnserialize = false)
+    {
+        if (!$doNotTestCacheValidity) {
+            if ($this->test($id)) {
+                return parent::load($id, true, $doNotUnserialize);
+            }
+            return false;
+        }
+        return parent::load($id, true, $doNotUnserialize);
+    }
+
+    /**
+     * Test if a cache is available for the given id
+     *
+     * @param  string $id Cache id
+     * @return int|false Last modified time of cache entry if it is available, false otherwise
+     */
+    public function test($id)
+    {
+        $lastModified = parent::test($id);
+        if ($lastModified) {
+            if ($this->_specificOptions['master_files_mode'] == self::MODE_AND) {
+                // MODE_AND
+                foreach($this->_masterFile_mtimes as $masterFileMTime) {
+                    if ($masterFileMTime) {
+                        if ($lastModified > $masterFileMTime) {
+                            return $lastModified;
+                        }
+                    }
+                }
+            } else {
+                // MODE_OR
+                $res = true;
+                foreach($this->_masterFile_mtimes as $masterFileMTime) {
+                    if ($masterFileMTime) {
+                        if ($lastModified <= $masterFileMTime) {
+                            return false;
+                        }
+                    }
+                }
+                return $lastModified;
+            }
+        }
+        return false;
+    }
+
+}
+
diff --git a/library/vendor/Zend/Cache/Frontend/Function.php b/library/vendor/Zend/Cache/Frontend/Function.php
new file mode 100644
index 0000000..3dc7fd8
--- /dev/null
+++ b/library/vendor/Zend/Cache/Frontend/Function.php
@@ -0,0 +1,178 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+
+/**
+ * @see Zend_Cache_Core
+ */
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Frontend_Function extends Zend_Cache_Core
+{
+    /**
+     * This frontend specific options
+     *
+     * ====> (boolean) cache_by_default :
+     * - if true, function calls will be cached by default
+     *
+     * ====> (array) cached_functions :
+     * - an array of function names which will be cached (even if cache_by_default = false)
+     *
+     * ====> (array) non_cached_functions :
+     * - an array of function names which won't be cached (even if cache_by_default = true)
+     *
+     * @var array options
+     */
+    protected $_specificOptions = array(
+        'cache_by_default' => true,
+        'cached_functions' => array(),
+        'non_cached_functions' => array()
+    );
+
+    /**
+     * Constructor
+     *
+     * @param  array $options Associative array of options
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        foreach ($options as $name => $value) {
+            $this->setOption($name, $value);
+        }
+        $this->setOption('automatic_serialization', true);
+    }
+
+    /**
+     * Main method : call the specified function or get the result from cache
+     *
+     * @param  callback $callback         A valid callback
+     * @param  array    $parameters       Function parameters
+     * @param  array    $tags             Cache tags
+     * @param  int      $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @param  int      $priority         integer between 0 (very low priority) and 10 (maximum priority) used by some particular backends
+     * @return mixed Result
+     */
+    public function call($callback, array $parameters = array(), $tags = array(), $specificLifetime = false, $priority = 8)
+    {
+        if (!is_callable($callback, true, $name)) {
+            Zend_Cache::throwException('Invalid callback');
+        }
+
+        $cacheBool1 = $this->_specificOptions['cache_by_default'];
+        $cacheBool2 = in_array($name, $this->_specificOptions['cached_functions']);
+        $cacheBool3 = in_array($name, $this->_specificOptions['non_cached_functions']);
+        $cache = (($cacheBool1 || $cacheBool2) && (!$cacheBool3));
+        if (!$cache) {
+            // Caching of this callback is disabled
+            return call_user_func_array($callback, $parameters);
+        }
+
+        $id = $this->_makeId($callback, $parameters);
+        if ( ($rs = $this->load($id)) && isset($rs[0], $rs[1])) {
+            // A cache is available
+            $output = $rs[0];
+            $return = $rs[1];
+        } else {
+            // A cache is not available (or not valid for this frontend)
+            ob_start();
+            ob_implicit_flush(false);
+            $return = call_user_func_array($callback, $parameters);
+            $output = ob_get_clean();
+            $data = array($output, $return);
+            $this->save($data, $id, $tags, $specificLifetime, $priority);
+        }
+
+        echo $output;
+        return $return;
+    }
+
+    /**
+     * ZF-9970
+     *
+     * @deprecated
+     */
+    private function _makeId($callback, array $args)
+    {
+        return $this->makeId($callback, $args);
+    }
+
+    /**
+     * Make a cache id from the function name and parameters
+     *
+     * @param  callback $callback A valid callback
+     * @param  array    $args     Function parameters
+     * @throws Zend_Cache_Exception
+     * @return string Cache id
+     */
+    public function makeId($callback, array $args = array())
+    {
+        if (!is_callable($callback, true, $name)) {
+            Zend_Cache::throwException('Invalid callback');
+        }
+
+        // functions, methods and classnames are case-insensitive
+        $name = strtolower($name);
+
+        // generate a unique id for object callbacks
+        if (is_object($callback)) { // Closures & __invoke
+            $object = $callback;
+        } elseif (isset($callback[0])) { // array($object, 'method')
+            $object = $callback[0];
+        }
+        if (isset($object)) {
+            try {
+                $tmp = @serialize($callback);
+            } catch (Exception $e) {
+                Zend_Cache::throwException($e->getMessage());
+            }
+            if (!$tmp) {
+                $lastErr = error_get_last();
+                Zend_Cache::throwException("Can't serialize callback object to generate id: {$lastErr['message']}");
+            }
+            $name.= '__' . $tmp;
+        }
+
+        // generate a unique id for arguments
+        $argsStr = '';
+        if ($args) {
+            try {
+                $argsStr = @serialize(array_values($args));
+            } catch (Exception $e) {
+                Zend_Cache::throwException($e->getMessage());
+            }
+            if (!$argsStr) {
+                $lastErr = error_get_last();
+                throw Zend_Cache::throwException("Can't serialize arguments to generate id: {$lastErr['message']}");
+            }
+        }
+
+        return md5($name . $argsStr);
+    }
+
+}
diff --git a/library/vendor/Zend/Cache/Frontend/Output.php b/library/vendor/Zend/Cache/Frontend/Output.php
new file mode 100644
index 0000000..dd8fe8d
--- /dev/null
+++ b/library/vendor/Zend/Cache/Frontend/Output.php
@@ -0,0 +1,104 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+
+/**
+ * @see Zend_Cache_Core
+ */
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Frontend_Output extends Zend_Cache_Core
+{
+
+    private $_idStack = array();
+
+    /**
+     * Constructor
+     *
+     * @param  array $options Associative array of options
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        parent::__construct($options);
+        $this->_idStack = array();
+    }
+
+    /**
+     * Start the cache
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @param  boolean $echoData               If set to true, datas are sent to the browser if the cache is hit (simply returned else)
+     * @return mixed True if the cache is hit (false else) with $echoData=true (default) ; string else (datas)
+     */
+    public function start($id, $doNotTestCacheValidity = false, $echoData = true)
+    {
+        $data = $this->load($id, $doNotTestCacheValidity);
+        if ($data !== false) {
+            if ( $echoData ) {
+                echo($data);
+                return true;
+            } else {
+                return $data;
+            }
+        }
+        ob_start();
+        ob_implicit_flush(false);
+        $this->_idStack[] = $id;
+        return false;
+    }
+
+    /**
+     * Stop the cache
+     *
+     * @param  array   $tags             Tags array
+     * @param  int     $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @param  string  $forcedDatas      If not null, force written datas with this
+     * @param  boolean $echoData         If set to true, datas are sent to the browser
+     * @param  int     $priority         integer between 0 (very low priority) and 10 (maximum priority) used by some particular backends
+     * @return void
+     */
+    public function end($tags = array(), $specificLifetime = false, $forcedDatas = null, $echoData = true, $priority = 8)
+    {
+        if ($forcedDatas === null) {
+            $data = ob_get_clean();
+        } else {
+            $data =& $forcedDatas;
+        }
+        $id = array_pop($this->_idStack);
+        if ($id === null) {
+            Zend_Cache::throwException('use of end() without a start()');
+        }
+        $this->save($data, $id, $tags, $specificLifetime, $priority);
+        if ($echoData) {
+            echo($data);
+        }
+    }
+
+}
diff --git a/library/vendor/Zend/Cache/Frontend/Page.php b/library/vendor/Zend/Cache/Frontend/Page.php
new file mode 100644
index 0000000..8326281
--- /dev/null
+++ b/library/vendor/Zend/Cache/Frontend/Page.php
@@ -0,0 +1,403 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+
+/**
+ * @see Zend_Cache_Core
+ */
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Frontend_Page extends Zend_Cache_Core
+{
+    /**
+     * This frontend specific options
+     *
+     * ====> (boolean) http_conditional :
+     * - if true, http conditional mode is on
+     * WARNING : http_conditional OPTION IS NOT IMPLEMENTED FOR THE MOMENT (TODO)
+     *
+     * ====> (boolean) debug_header :
+     * - if true, a debug text is added before each cached pages
+     *
+     * ====> (boolean) content_type_memorization :
+     * - deprecated => use memorize_headers instead
+     * - if the Content-Type header is sent after the cache was started, the
+     *   corresponding value can be memorized and replayed when the cache is hit
+     *   (if false (default), the frontend doesn't take care of Content-Type header)
+     *
+     * ====> (array) memorize_headers :
+     * - an array of strings corresponding to some HTTP headers name. Listed headers
+     *   will be stored with cache datas and "replayed" when the cache is hit
+     *
+     * ====> (array) default_options :
+     * - an associative array of default options :
+     *     - (boolean) cache : cache is on by default if true
+     *     - (boolean) cacheWithXXXVariables  (XXXX = 'Get', 'Post', 'Session', 'Files' or 'Cookie') :
+     *       if true,  cache is still on even if there are some variables in this superglobal array
+     *       if false, cache is off if there are some variables in this superglobal array
+     *     - (boolean) makeIdWithXXXVariables (XXXX = 'Get', 'Post', 'Session', 'Files' or 'Cookie') :
+     *       if true, we have to use the content of this superglobal array to make a cache id
+     *       if false, the cache id won't be dependent of the content of this superglobal array
+     *     - (int) specific_lifetime : cache specific lifetime
+     *                                (false => global lifetime is used, null => infinite lifetime,
+     *                                 integer => this lifetime is used), this "lifetime" is probably only
+     *                                usefull when used with "regexps" array
+     *     - (array) tags : array of tags (strings)
+     *     - (int) priority : integer between 0 (very low priority) and 10 (maximum priority) used by
+     *                        some particular backends
+     *
+     * ====> (array) regexps :
+     * - an associative array to set options only for some REQUEST_URI
+     * - keys are (pcre) regexps
+     * - values are associative array with specific options to set if the regexp matchs on $_SERVER['REQUEST_URI']
+     *   (see default_options for the list of available options)
+     * - if several regexps match the $_SERVER['REQUEST_URI'], only the last one will be used
+     *
+     * @var array options
+     */
+    protected $_specificOptions = array(
+        'http_conditional' => false,
+        'debug_header' => false,
+        'content_type_memorization' => false,
+        'memorize_headers' => array(),
+        'default_options' => array(
+            'cache_with_get_variables' => false,
+            'cache_with_post_variables' => false,
+            'cache_with_session_variables' => false,
+            'cache_with_files_variables' => false,
+            'cache_with_cookie_variables' => false,
+            'make_id_with_get_variables' => true,
+            'make_id_with_post_variables' => true,
+            'make_id_with_session_variables' => true,
+            'make_id_with_files_variables' => true,
+            'make_id_with_cookie_variables' => true,
+            'cache' => true,
+            'specific_lifetime' => false,
+            'tags' => array(),
+            'priority' => null
+        ),
+        'regexps' => array()
+    );
+
+    /**
+     * Internal array to store some options
+     *
+     * @var array associative array of options
+     */
+    protected $_activeOptions = array();
+
+    /**
+     * If true, the page won't be cached
+     *
+     * @var boolean
+     */
+    protected $_cancel = false;
+
+    /**
+     * Constructor
+     *
+     * @param  array   $options                Associative array of options
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        foreach ($options as $name => $value) {
+            $name = strtolower($name);
+            switch ($name) {
+                case 'regexps':
+                    $this->_setRegexps($value);
+                    break;
+                case 'default_options':
+                    $this->_setDefaultOptions($value);
+                    break;
+                case 'content_type_memorization':
+                    $this->_setContentTypeMemorization($value);
+                    break;
+                default:
+                    $this->setOption($name, $value);
+            }
+        }
+        if (isset($this->_specificOptions['http_conditional'])) {
+            if ($this->_specificOptions['http_conditional']) {
+                Zend_Cache::throwException('http_conditional is not implemented for the moment !');
+            }
+        }
+        $this->setOption('automatic_serialization', true);
+    }
+
+    /**
+     * Specific setter for the 'default_options' option (with some additional tests)
+     *
+     * @param  array $options Associative array
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    protected function _setDefaultOptions($options)
+    {
+        if (!is_array($options)) {
+            Zend_Cache::throwException('default_options must be an array !');
+        }
+        foreach ($options as $key=>$value) {
+            if (!is_string($key)) {
+                Zend_Cache::throwException("invalid option [$key] !");
+            }
+            $key = strtolower($key);
+            if (isset($this->_specificOptions['default_options'][$key])) {
+                $this->_specificOptions['default_options'][$key] = $value;
+            }
+        }
+    }
+
+    /**
+     * Set the deprecated contentTypeMemorization option
+     *
+     * @param boolean $value value
+     * @return void
+     * @deprecated
+     */
+    protected function _setContentTypeMemorization($value)
+    {
+        $found = null;
+        foreach ($this->_specificOptions['memorize_headers'] as $key => $value) {
+            if (strtolower($value) == 'content-type') {
+                $found = $key;
+            }
+        }
+        if ($value) {
+            if (!$found) {
+                $this->_specificOptions['memorize_headers'][] = 'Content-Type';
+            }
+        } else {
+            if ($found) {
+                unset($this->_specificOptions['memorize_headers'][$found]);
+            }
+        }
+    }
+
+    /**
+     * Specific setter for the 'regexps' option (with some additional tests)
+     *
+     * @param  array $options Associative array
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    protected function _setRegexps($regexps)
+    {
+        if (!is_array($regexps)) {
+            Zend_Cache::throwException('regexps option must be an array !');
+        }
+        foreach ($regexps as $regexp=>$conf) {
+            if (!is_array($conf)) {
+                Zend_Cache::throwException('regexps option must be an array of arrays !');
+            }
+            $validKeys = array_keys($this->_specificOptions['default_options']);
+            foreach ($conf as $key=>$value) {
+                if (!is_string($key)) {
+                    Zend_Cache::throwException("unknown option [$key] !");
+                }
+                $key = strtolower($key);
+                if (!in_array($key, $validKeys)) {
+                    unset($regexps[$regexp][$key]);
+                }
+            }
+        }
+        $this->setOption('regexps', $regexps);
+    }
+
+    /**
+     * Start the cache
+     *
+     * @param  string  $id       (optional) A cache id (if you set a value here, maybe you have to use Output frontend instead)
+     * @param  boolean $doNotDie For unit testing only !
+     * @return boolean True if the cache is hit (false else)
+     */
+    public function start($id = false, $doNotDie = false)
+    {
+        $this->_cancel = false;
+        $lastMatchingRegexp = null;
+        if (isset($_SERVER['REQUEST_URI'])) {
+            foreach ($this->_specificOptions['regexps'] as $regexp => $conf) {
+                if (preg_match("`$regexp`", $_SERVER['REQUEST_URI'])) {
+                    $lastMatchingRegexp = $regexp;
+                }
+            }
+        }
+        $this->_activeOptions = $this->_specificOptions['default_options'];
+        if ($lastMatchingRegexp !== null) {
+            $conf = $this->_specificOptions['regexps'][$lastMatchingRegexp];
+            foreach ($conf as $key=>$value) {
+                $this->_activeOptions[$key] = $value;
+            }
+        }
+        if (!($this->_activeOptions['cache'])) {
+            return false;
+        }
+        if (!$id) {
+            $id = $this->_makeId();
+            if (!$id) {
+                return false;
+            }
+        }
+        $array = $this->load($id);
+        if ($array !== false) {
+            $data = $array['data'];
+            $headers = $array['headers'];
+            if (!headers_sent()) {
+                foreach ($headers as $key=>$headerCouple) {
+                    $name = $headerCouple[0];
+                    $value = $headerCouple[1];
+                    header("$name: $value");
+                }
+            }
+            if ($this->_specificOptions['debug_header']) {
+                echo 'DEBUG HEADER : This is a cached page !';
+            }
+            echo $data;
+            if ($doNotDie) {
+                return true;
+            }
+            die();
+        }
+        ob_start(array($this, '_flush'));
+        ob_implicit_flush(false);
+        return false;
+    }
+
+    /**
+     * Cancel the current caching process
+     */
+    public function cancel()
+    {
+        $this->_cancel = true;
+    }
+
+    /**
+     * callback for output buffering
+     * (shouldn't really be called manually)
+     *
+     * @param  string $data Buffered output
+     * @return string Data to send to browser
+     */
+    public function _flush($data)
+    {
+        if ($this->_cancel) {
+            return $data;
+        }
+        $contentType = null;
+        $storedHeaders = array();
+        $headersList = headers_list();
+        foreach($this->_specificOptions['memorize_headers'] as $key=>$headerName) {
+            foreach ($headersList as $headerSent) {
+                $tmp = explode(':', $headerSent);
+                $headerSentName = trim(array_shift($tmp));
+                if (strtolower($headerName) == strtolower($headerSentName)) {
+                    $headerSentValue = trim(implode(':', $tmp));
+                    $storedHeaders[] = array($headerSentName, $headerSentValue);
+                }
+            }
+        }
+        $array = array(
+            'data' => $data,
+            'headers' => $storedHeaders
+        );
+        $this->save($array, null, $this->_activeOptions['tags'], $this->_activeOptions['specific_lifetime'], $this->_activeOptions['priority']);
+        return $data;
+    }
+
+    /**
+     * Make an id depending on REQUEST_URI and superglobal arrays (depending on options)
+     *
+     * @return mixed|false a cache id (string), false if the cache should have not to be used
+     */
+    protected function _makeId()
+    {
+        $tmp = $_SERVER['REQUEST_URI'];
+        $array = explode('?', $tmp, 2);
+          $tmp = $array[0];
+        foreach (array('Get', 'Post', 'Session', 'Files', 'Cookie') as $arrayName) {
+            $tmp2 = $this->_makePartialId($arrayName, $this->_activeOptions['cache_with_' . strtolower($arrayName) . '_variables'], $this->_activeOptions['make_id_with_' . strtolower($arrayName) . '_variables']);
+            if ($tmp2===false) {
+                return false;
+            }
+            $tmp = $tmp . $tmp2;
+        }
+        return md5($tmp);
+    }
+
+    /**
+     * Make a partial id depending on options
+     *
+     * @param  string $arrayName Superglobal array name
+     * @param  bool   $bool1     If true, cache is still on even if there are some variables in the superglobal array
+     * @param  bool   $bool2     If true, we have to use the content of the superglobal array to make a partial id
+     * @return mixed|false Partial id (string) or false if the cache should have not to be used
+     */
+    protected function _makePartialId($arrayName, $bool1, $bool2)
+    {
+        switch ($arrayName) {
+        case 'Get':
+            $var = $_GET;
+            break;
+        case 'Post':
+            $var = $_POST;
+            break;
+        case 'Session':
+            if (isset($_SESSION)) {
+                $var = $_SESSION;
+            } else {
+                $var = null;
+            }
+            break;
+        case 'Cookie':
+            if (isset($_COOKIE)) {
+                $var = $_COOKIE;
+            } else {
+                $var = null;
+            }
+            break;
+        case 'Files':
+            $var = $_FILES;
+            break;
+        default:
+            return false;
+        }
+        if ($bool1) {
+            if ($bool2) {
+                return serialize($var);
+            }
+            return '';
+        }
+        if (count($var) > 0) {
+            return false;
+        }
+        return '';
+    }
+
+}
diff --git a/library/vendor/Zend/Cache/Manager.php b/library/vendor/Zend/Cache/Manager.php
new file mode 100644
index 0000000..5196c19
--- /dev/null
+++ b/library/vendor/Zend/Cache/Manager.php
@@ -0,0 +1,304 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+/** @see Zend_Cache_Exception */
+
+/** @see Zend_Cache */
+
+/**
+ * @category   Zend
+ * @package    Zend_Cache
+ * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Manager
+{
+    /**
+     * Constant holding reserved name for default Page Cache
+     */
+    const PAGECACHE = 'page';
+
+    /**
+     * Constant holding reserved name for default Page Tag Cache
+     */
+    const PAGETAGCACHE = 'pagetag';
+
+    /**
+     * Array of caches stored by the Cache Manager instance
+     *
+     * @var array
+     */
+    protected $_caches = array();
+
+    /**
+     * Array of ready made configuration templates for lazy
+     * loading caches.
+     *
+     * @var array
+     */
+    protected $_optionTemplates = array(
+        // Simple Common Default
+        'default' => array(
+            'frontend' => array(
+                'name'    => 'Core',
+                'options' => array(
+                    'automatic_serialization' => true,
+                ),
+            ),
+            'backend' => array(
+                'name'    => 'File',
+                'options' => array(
+                    // use system temp dir by default of file backend
+                    // 'cache_dir' => '../cache',
+                ),
+            ),
+        ),
+
+        // Static Page HTML Cache
+        'page' => array(
+            'frontend' => array(
+                'name'    => 'Capture',
+                'options' => array(
+                    'ignore_user_abort' => true,
+                ),
+            ),
+            'backend' => array(
+                'name'    => 'Static',
+                'options' => array(
+                    'public_dir' => '../public',
+                ),
+            ),
+        ),
+
+        // Tag Cache
+        'pagetag' => array(
+            'frontend' => array(
+                'name'    => 'Core',
+                'options' => array(
+                    'automatic_serialization' => true,
+                    'lifetime' => null
+                ),
+            ),
+            'backend' => array(
+                'name'    => 'File',
+                'options' => array(
+                    // use system temp dir by default of file backend
+                    // 'cache_dir' => '../cache',
+                    // use default umask of file backend
+                    // 'cache_file_umask' => 0644
+                ),
+            ),
+        ),
+    );
+
+    /**
+     * Set a new cache for the Cache Manager to contain
+     *
+     * @param  string $name
+     * @param  Zend_Cache_Core $cache
+     * @return Zend_Cache_Manager
+     */
+    public function setCache($name, Zend_Cache_Core $cache)
+    {
+        $this->_caches[$name] = $cache;
+        return $this;
+    }
+
+    /**
+     * Check if the Cache Manager contains the named cache object, or a named
+     * configuration template to lazy load the cache object
+     *
+     * @param string $name
+     * @return bool
+     */
+    public function hasCache($name)
+    {
+        if (isset($this->_caches[$name])
+            || $this->hasCacheTemplate($name)
+        ) {
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Fetch the named cache object, or instantiate and return a cache object
+     * using a named configuration template
+     *
+     * @param  string $name
+     * @return Zend_Cache_Core
+     */
+    public function getCache($name)
+    {
+        if (isset($this->_caches[$name])) {
+            return $this->_caches[$name];
+        }
+        if (isset($this->_optionTemplates[$name])) {
+            if ($name == self::PAGECACHE
+                && (!isset($this->_optionTemplates[$name]['backend']['options']['tag_cache'])
+                || !$this->_optionTemplates[$name]['backend']['options']['tag_cache'] instanceof Zend_Cache_Core)
+            ) {
+                $this->_optionTemplates[$name]['backend']['options']['tag_cache']
+                    = $this->getCache(self::PAGETAGCACHE);
+            }
+
+            $this->_caches[$name] = Zend_Cache::factory(
+                $this->_optionTemplates[$name]['frontend']['name'],
+                $this->_optionTemplates[$name]['backend']['name'],
+                isset($this->_optionTemplates[$name]['frontend']['options']) ? $this->_optionTemplates[$name]['frontend']['options'] : array(),
+                isset($this->_optionTemplates[$name]['backend']['options']) ? $this->_optionTemplates[$name]['backend']['options'] : array(),
+                isset($this->_optionTemplates[$name]['frontend']['customFrontendNaming']) ? $this->_optionTemplates[$name]['frontend']['customFrontendNaming'] : false,
+                isset($this->_optionTemplates[$name]['backend']['customBackendNaming']) ? $this->_optionTemplates[$name]['backend']['customBackendNaming'] : false,
+                isset($this->_optionTemplates[$name]['frontendBackendAutoload']) ? $this->_optionTemplates[$name]['frontendBackendAutoload'] : false
+            );
+
+            return $this->_caches[$name];
+        }
+    }
+
+    /**
+     * Fetch all available caches
+     *
+     * @return array An array of all available caches with it's names as key
+     */
+    public function getCaches()
+    {
+        $caches = $this->_caches;
+        foreach ($this->_optionTemplates as $name => $tmp) {
+            if (!isset($caches[$name])) {
+                $caches[$name] = $this->getCache($name);
+            }
+        }
+        return $caches;
+    }
+
+    /**
+     * Set a named configuration template from which a cache object can later
+     * be lazy loaded
+     *
+     * @param  string $name
+     * @param  array  $options
+     * @return Zend_Cache_Manager
+     * @throws Zend_Cache_Exception
+     */
+    public function setCacheTemplate($name, $options)
+    {
+        if ($options instanceof Zend_Config) {
+            $options = $options->toArray();
+        } elseif (!is_array($options)) {
+            throw new Zend_Cache_Exception('Options passed must be in'
+                . ' an associative array or instance of Zend_Config');
+        }
+        $this->_optionTemplates[$name] = $options;
+        return $this;
+    }
+
+    /**
+     * Check if the named configuration template
+     *
+     * @param  string $name
+     * @return bool
+     */
+    public function hasCacheTemplate($name)
+    {
+        if (isset($this->_optionTemplates[$name])) {
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Get the named configuration template
+     *
+     * @param  string $name
+     * @return array
+     */
+    public function getCacheTemplate($name)
+    {
+        if (isset($this->_optionTemplates[$name])) {
+            return $this->_optionTemplates[$name];
+        }
+    }
+
+    /**
+     * Pass an array containing changes to be applied to a named
+     * configuration
+     * template
+     *
+     * @param  string $name
+     * @param  array $options
+     * @return Zend_Cache_Manager
+     * @throws Zend_Cache_Exception for invalid options format or if option templates do not have $name
+     */
+    public function setTemplateOptions($name, $options)
+    {
+        if ($options instanceof Zend_Config) {
+            $options = $options->toArray();
+        } elseif (!is_array($options)) {
+            throw new Zend_Cache_Exception('Options passed must be in'
+                . ' an associative array or instance of Zend_Config');
+        }
+        if (!isset($this->_optionTemplates[$name])) {
+            throw new Zend_Cache_Exception('A cache configuration template'
+                . 'does not exist with the name "' . $name . '"');
+        }
+        $this->_optionTemplates[$name]
+            = $this->_mergeOptions($this->_optionTemplates[$name], $options);
+        return $this;
+    }
+
+    /**
+     * Simple method to merge two configuration arrays
+     *
+     * @param  array $current
+     * @param  array $options
+     * @return array
+     */
+    protected function _mergeOptions(array $current, array $options)
+    {
+        if (isset($options['frontend']['name'])) {
+            $current['frontend']['name'] = $options['frontend']['name'];
+        }
+        if (isset($options['backend']['name'])) {
+            $current['backend']['name'] = $options['backend']['name'];
+        }
+        if (isset($options['frontend']['options'])) {
+            foreach ($options['frontend']['options'] as $key => $value) {
+                $current['frontend']['options'][$key] = $value;
+            }
+        }
+        if (isset($options['backend']['options'])) {
+            foreach ($options['backend']['options'] as $key => $value) {
+                $current['backend']['options'][$key] = $value;
+            }
+        }
+        if (isset($options['frontend']['customFrontendNaming'])) {
+            $current['frontend']['customFrontendNaming'] = $options['frontend']['customFrontendNaming'];
+        }
+        if (isset($options['backend']['customBackendNaming'])) {
+            $current['backend']['customBackendNaming'] = $options['backend']['customBackendNaming'];
+        }
+        if (isset($options['frontendBackendAutoload'])) {
+            $current['frontendBackendAutoload'] = $options['frontendBackendAutoload'];
+        }
+        return $current;
+    }
+}