* Core/Quest: improve source item deletion logic for items that give quests.
Prevent deletion of items that aren't supposed to be destroyed (like Demon Scarred Cloak).
* Whoops.
Fix crash caused by WorldObject::setActive(false) called after WorldObject::DespawnOrUnsummon() happening because the WorldObject would be set as not active but then Map::RemoveFromActiveHelper() would not be called because of not being in world anymore.
Whenever setActive() gets desync'd with what Map actually contains a rare crash would happen since Map only reads a few values of the active WorldObject, making it hard to reproduce. If this happens again some ASSERT calls should be added (or a check in Map::RemoveFromMap() could be added about if the WorldObject is in Map::m_activeNonPlayers container).
* Core/Conditions: implement CONDITION_GAMEMASTER
* Core/Social: Separated checks for friend and ignored limits
* Prevent duplication of contacts
* Limit values should be included in counters
* Codestyle and comments
* Breadcrumb quests support in core
* To Winterspring! & Starfall
* translating ZenoX92's list, part 1
* Carendin Summons is Blood Elf only
* Breadcrumb to an exclusive group
* translating ZenoX92's list, part 2
* class quests
* breadcrumb trails
* better prevquest check
* less harsh error warnings
* minor optimization
* Rename 9999_99_99_99_world.sql to 2019_04_10_00_world.sql
* Core/Movement:
- Only move to point if there is a path that is not a shortcut (which will make the unit move through terrain)
- Added new function to check if there is a vmap floor without search distance
- Units that can fly, are underground but far above the vmap floor will stay underground (bronze drakes in tanaris)
- Don't remove PATHFIND_SHORTCUT from path type in some cases
* Core/Object: Ignore UpdateAllowedPositionZ for flying units.
- This will make flying units go through mountains instead of going to the top and back to the bottom to reach you.
* Core/Object: Revert some changes and let MovePositionToFirstCollision deal with a position without ground
* Missing groundZ change for objects on transport
* use CanFly instead of IsFlying
* typo and correction
* spell aura no longer shared between targets
_spellAura isolated
* SPELL_AURA_CONTROL_VEHICLE is not strictly single target spell
Steam Tank Control and Wyrmrest Commander
units can reseat themselves again
* Rename 9999_99_99_99_world.sql to 2019_03_08_00_world.sql