Merge remote-tracking branch 'TrinityCore/4.3.4' into 4.3.4

Conflicts:
	src/server/game/Entities/Player/Player.cpp
	src/server/game/Entities/Unit/Unit.cpp
	src/server/game/Spells/SpellEffects.cpp
	src/server/game/Spells/SpellMgr.cpp
	src/server/scripts/Spells/spell_hunter.cpp
	src/server/scripts/Spells/spell_mage.cpp
	src/server/scripts/Spells/spell_paladin.cpp
	src/server/scripts/Spells/spell_shaman.cpp
	src/server/scripts/Spells/spell_warlock.cpp
	src/server/scripts/World/npcs_special.cpp