Core/Auth: Add support for build 13930 of china

By phoenixfight closes #11978
Core/Spells: Correct a mistake in HOT aura procs

A crash fix was added in 3e0d2e49448ae5d53baefa0ef3b2df4542aae1dd
but the usage of spellProcEvent itself was incorrect, we should instead use spellProto of aura to be procced
DB/Creature: Remove trigger flags from Dead Caravan mobs

By phoenixfight, closes #11986
DB/Gossip: Fix some gossip stuff
Merge pull request #11984 from Unholychick/patch-1

Core/Spells: Correct a mistake in HoT aura procs