Adding upstream version 1.6~pre1.upstream/1.6_pre1

Signed-off-by: Daniel Baumann <mail@daniel-baumann.ch>

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+Description
+
+Lzip is a lossless data compressor based on the LZMA algorithm, with
+very safe integrity checking and a user interface similar to the one of
+gzip or bzip2. Lzip decompresses almost as fast as gzip and compresses
+better than bzip2, which makes it well suited for software distribution
+and data archiving.
+
+Lzip replaces every file given in the command line with a compressed
+version of itself, with the name "original_name.lz". Each compressed
+file has the same modification date, permissions, and, when possible,
+ownership as the corresponding original, so that these properties can be
+correctly restored at decompression time. Lzip is able to read from some
+types of non regular files if the "--stdout" option is specified.
+
+If no file names are specified, lzip compresses (or decompresses) from
+standard input to standard output. In this case, lzip will decline to
+write compressed output to a terminal, as this would be entirely
+incomprehensible and therefore pointless.
+
+Lzip will correctly decompress a file which is the concatenation of two
+or more compressed files. The result is the concatenation of the
+corresponding uncompressed files. Integrity testing of concatenated
+compressed files is also supported.
+
+Lzip can produce multimember files and safely recover, with lziprecover,
+the undamaged members in case of file damage. Lzip can also split the
+compressed output in volumes of a given size, even when reading from
+standard input. This allows the direct creation of multivolume
+compressed tar archives.
+
+Lzip will automatically use the smallest possible dictionary size for
+each member without exceeding the given limit. It is important to
+appreciate that the decompression memory requirement is affected at
+compression time by the choice of dictionary size limit.
+
+As a self-check for your protection, lzip stores in the member trailer
+the 32-bit CRC of the original data and the size of the original data,
+to make sure that the decompressed version of the data is identical to
+the original. This guards against corruption of the compressed data, and
+against undetected bugs in lzip (hopefully very unlikely). The chances
+of data corruption going undetected are microscopic, less than one
+chance in 4000 million for each member processed. Be aware, though, that
+the check occurs upon decompression, so it can only tell you that
+something is wrong. It can't help you recover the original uncompressed
+data.
+
+Lzip implements a simplified version of the LZMA (Lempel-Ziv-Markov
+chain-Algorithm) algorithm. The original LZMA algorithm was designed by
+Igor Pavlov.
+
+The high compression of LZMA comes from combining two basic, well-proven
+compression ideas: sliding dictionaries (LZ77/78) and markov models (the
+thing used by every compression algorithm that uses a range encoder or
+similar order-0 entropy coder as its last stage) with segregation of
+contexts according to what the bits are used for.
+
+
+Copyright (C) 2008, 2009 Antonio Diaz Diaz.
+
+This file is free documentation: you have unlimited permission to copy,
+distribute and modify it.
+
+The file Makefile.in is a data file used by configure to produce the
+Makefile. It has the same copyright owner and permissions that this
+file.