2013-06-11: Fixed a typo in the onupdate.php file which will cause the update to v0.93 from earlier versions to fail.
Updating to 2.5.6 Admin GUI

Signed-off-by: Michael Beck (Mamba) <mambax7@gmail.com>
Merge branch 'upd-2.5.6' into v0.94-dev
Implementation of IPv6 cache, and tweaks to the Admin GUI.
Changed around a few of the strings.  Fixed up some processing code, etc.