[TW344] - Core/Misc: Kill some performance warnings
[TW345] - Core/Misc: Attempt to get rid of the remaining warnings
Merge branch 'master' of https://github.com/TrueWoW/TrinityCore into ghbb

Conflicts:
	src/server/scripts/Custom/AzjolNerub/TW_boss_hadronox.cpp
	src/server/scripts/Custom/Ulduar/TW_boss_mimiron.cpp
	src/server/scripts/Custom/Ulduar/TW_boss_thorim.cpp