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/Spells/Spell.cpp

@@ -2207,7 +2207,7 @@ void Spell::SelectEffectTargets(uint32 i, uint32 cur)
             dist = (float)target->GetSpellRadiusForTarget(target, sSpellRadiusStore.LookupEntry(m_spellInfo->EffectRadiusIndex[i]));
             if (dist < objSize)
                 dist = objSize;
-            else if (cur == TARGET_DEST_CASTER_RANDOM)
+            else if (cur == TARGET_DEST_TARGET_RANDOM)
                 dist = objSize + (dist - objSize) * (float)rand_norm();
 
             switch(cur)