Scripts/Icecrown Citadel: Added Blood Prince Council script

Scripts/Icecrown Citadel: Festergut will not cast Vile Gas on melee targets if there are at least 3 (25 man: 8) ranged targets
Scripts/Icecrown Citadel: Festergut and Rotface gates will close with delay (when Putricide reaches the balcony)
Scripts/Icecrown Citadel: Replaced ASSERT(instance) with code disabling the AI if not inside instance
Core/Spells: Fixed TARGET_DEST_TARGET_RANDOM usage
Core/Scripts: Extended DamageDealt in AI to accept damage type as 3rd parameter
Scripts/Quests: Fixed quest "Unholy Infusion" (24749)

--HG--
branch : trunk

src/server/game/AI/CreatureAI.h

@@ -94,7 +94,7 @@ class CreatureAI : public UnitAI
         virtual void EnterCombat(Unit* /*enemy*/) {}
 
         // Called at any Damage to any victim (before damage apply)
-        virtual void DamageDealt(Unit * /*done_to*/, uint32 & /*damage*/) { }
+        virtual void DamageDealt(Unit * /*done_to*/, uint32 & /*damage*/, DamageEffectType /*damagetype*/) { }
 
         // Called at any Damage from any attacker (before damage apply)
         // Note: it for recalculation damage or special reaction at damage