Fixed GUI + LUA

Added a bunch of new things:
-Fixed Lua error log, and added "GetSetting(...)" function.
-Added Avoidance + SpecialAreas type of data (ex. 15, 20)
-Added custom node names (healrules, monsterlist, lootlist....)
-Removed '< xml blabla?>' from the header in .xml files

-However there is a bug which happens while deleting some nodes from
lists