Log Message:
Update to version 0.9.12.

- use SHLIBTOOL_OVERRIDE instead of LIBTOOL_OVERRIDE, the ugly
  static libraries hack is now gone.

Changes from 0.9.11 to 0.9.12
=============================

 * Added macros SILC_SWAB_[16|32] to swab byte order of
   16-bit and 32-bit unsigned integers.
 * Use the SILC_SWAB_16 instead of htons() in server when
   handling ports since the ports in structures are always
   in little-endian order (regardless of platform).
 * Send DISCONNECT in close admin command in server.
 * Check whether we are already connecting to a remote router
   (in addition of checking whether we are already connected)
   before creating new connection.
 * Check that socket is valid after QoS is applied to data.
 * Make sure the socket connecetion is not closed to early
   when closing connection in server.  Also make sure the
   connection is always closed after error in a protocol.
 * Fixed server crash with double Primary block in config file.
 * Fixed various memory leaks around the config file parser.
 * Fixed a double free in INVITE command error handling in
   server.