Test 820

* Fixed Forge compat.
* Fixed %[full]entities% returning multiplayer Chunk Cache value
* Re-enabled Rei's and Zan's/Voxel Minimap Compatibility.
* Fix incorrect variable being used for active GUI (off by one).
* Exception reporter now uses correct variable for active GUI (if any)
* WMLL will now use ModLoader's API to get Minecraft's FontRenderer if
it is running on one, otherwise uses vanilla method.
* Added missing "[WMLL]" tags to some debug output.