Update 6 maintenance of Zanttux' Gambit Helper plug-in.

Changes in this version (0.6.0):

• Updated the gambit-list to that of LotRo Update 6 - Added 3 new gambits and changed levels of existing ones
• Made the GH UI larger so that all skills will fit in it after Update 6 revision
• Included all Gambits now under their gambit type as listed in the official LotRo wiki. This means some gambits are shown more than once since they have more purposes
• Changed name to Gambit Helper 2 to make a new start with Zanttux' great tool
• Versions will recorded as 0.Update.patch-version

NOTES:
1. I'm an experienced programmer in several 3rd generation languages. I have never programmed OOP (which the LUA script is), but will give it a try to update the actual code as well. For now I'll be maintaining the gambit list but will update the code later on when I'll get the hang of the LUA script as well.
2. I'm not able to test all gambits yet since I've returned after a long 'away' period. My warden is 'only' 47 right now...