[9850] Fixed target selection for area spells casted from aura at enemy.

[newsbot]

<pre>m src/game/GridNotifiers.h
m src/game/Spell.cpp
m src/game/Spell.h
m src/shared/revision_nr.h

[9850] Fixed target selection for area spells casted from aura at enemy.

* Spell::GetCastingObject must be use for selection visual/point cast,
not for friend/enemy checks. Add extanded GetAffectiveCasterObject
for proper provide for referecned checks wild gameobject casted case.

* Also support chain damage spells casted by gameobjects.</pre>



Дальше...