DB/Quests: Fix Reunited, Dark Horizon, closes #6246 closes #8979
Scripting: Quest: Troll Patrol: The Alchemist's Apprentice
Core/Scripting: Remove double check. Thanks joschiwald
DB/Misc: Cleaning db of unused/obsolete stuff
DB/Misc: Cleaning db of unused/obsolete stuff
DB?Creature: Part fix for NPC Hut Fire for Quest: This Just In: Fire Still Hot!
DB/SAI: Hut Fire SAI Quest: This Just In: Fire Still Hot! "Now looks more like Offi"
Core/Scripting: Cleaning of unused/obsolete stuff
Core/Scripting: Updated Quest: Troll Patrol: The Alchemist's Apprentice scripting
Core/Movement

* Added wrapper methods for setting various movement flags and sending correct movement opcodes
* Made flying and falling spline flags exclusive with each other
Scripts/Misc: Use new movement flag setting methods in scripts
Core: Fix warnings
Core: Fix new warnings ...
Core/Objects: Refactored MovementInfo structure
Core/Scripting: Some updates to Zul'Drak scripts.
Scripts: Prevented several KilledUnit texts to yelled for non-players such as pets
DB/Scripting: Condition needed for spell Throw Ingredient
DB/Gossip: Add missing gossip for Gurgthock
DB/Creature: Add missing spawns for Amphitheater of Anguish
Core/Auras: Fixed a crash happening when different vehicle auras from the same caster stacked on one target

Closes #10050