Core/Db/Conditions:

-Drop condition CONDITION_SPELL_SCRIPT_TARGET, use other condition types instead
-Change CONDITION_SOURCE_TYPE_SPELL_SCRIPT_TARGET to CONDITION_SOURCE_TYPE_SPELL_IMPLICIT_TARGET:
--allow using this condition for more spell implicit target types (not just ENTRY)
--SourceGroup value for this src type is now effMask and it's now required

Core/Spells: Unify the way implicit targets are handled, fully implement some partially implemented target types, fix some minor bugs found on the way, general improvements and cleanup.

src/server/game/Spells/SpellScript.h

@@ -336,7 +336,6 @@ class SpellScript : public _SpellScript
         void PreventHitHeal() { SetHitHeal(0); }
         Spell* GetSpell() { return m_spell; }
         void GetSummonPosition(uint32 i, Position &pos, float radius, uint32 count);
-        void SearchAreaTarget(std::list<Unit*> &TagUnitMap, float radius, SpellNotifyPushType type, SpellTargets TargetType, uint32 entry);
         // returns current spell hit target aura
         Aura* GetHitAura();
         // prevents applying aura on current spell hit target