Scripts/Duskwood: prevention to spawn multiple Twilight Corrupter and fixed some issues there
Merge pull request #12035 from MitchesD/duskwood

Scripts/Duskwood: prevention to spawn multiple Twilight Corrupter and fi...
Core/Trade: It's no longer possible to fake the amount of gold put into the trade window. It's only visual but still an exploit, allowing scamming.
Merge branch 'master' of https://github.com/TrinityCore/TrinityCore into ghbb

Conflicts:
	src/server/scripts/EasternKingdoms/zone_duskwood.cpp