1) Core/Creatures: implement CREATURE_STATIC_FLAG_DESPAWN_INSTANTLY.
2) Core/Creatures: implement CREATURE_STATIC_FLAG_4_NO_BIRTH_ANIM.
3) Build fix.
4) Core/Creatures: ported all existing static flag implementations Creature.cpp.
5) Core/Units: Fixed possible use after free in ThreatManager.
6) Core/Movement: allow PATHFIND_SHORTCUT to be used for chasing units.
7) Fix Dockerfile using incorrect image.
8) Core/Movement: added some overloads to PathGenerator::CalculatePath.
9) Core/Movement: fixed edge cases in which hovering units were consider.
10) CircleCI: CIRCLE_PROJECT_USERNAME can't be used here.
11) Core/Spells: implement SPELL_ATTR0_CU_IS_TALENT.
12) Core/Auras: Convert most rules from Aura::CanBeSaved to a custom spell attribute.
13) Core/Spells: use already stored spell scaling values for coefficient calculation instead of accessing dbc data every single time.
14) Core/Movement: sync spline code with master branch.
15) Core/Movement: random movement now requires a minimum wander distance.