Make sure the gpgrt_lock_init gets called in libgpg-error, otherwise
several critical section statics are uninitialized

diff -ur gpgmepp.org/src/version.c gpgmepp/src/version.c
--- gpgmepp.org/src/version.c	2016-11-16 13:22:41.000000000 +0100
+++ gpgmepp/src/version.c	2017-11-23 17:16:35.218735200 +0100
@@ -66,6 +66,9 @@
     return;
 
 #ifdef HAVE_W32_SYSTEM
+  // initialize libgpg-error stuff
+  gpg_err_init();
+
   /* We need to make sure that the sockets are initialized.  */
   {
     WSADATA wsadat;