Core/Misc: Fix static analysis issues
Core/Auth: Add support for build 13930 of china

By phoenixfight closes #11978
DB/Creature: Remove trigger flags from Dead Caravan mobs

By phoenixfight, closes #11986
DB/Gossip: Fix some gossip stuff
Merge branch 'master' of github.com:TrinityCore/TrinityCore into 4.3.4