[svn] Prevent Bestial Wrath from being applied 5 times when cast by a hunter with The Beast Within talent. Hopefully this will also fix the crashes caused by this spell.

Change 'tbc' to 'expansion' in realmd.sql.

--HG--
branch : trunk

src/game/SpellAuras.cpp

@@ -3770,7 +3770,7 @@ void Aura::HandleModMechanicImmunity(bool apply, bool Real)
     }
 
     // Bestial Wrath
-    if ( GetSpellProto()->SpellFamilyName == SPELLFAMILY_HUNTER && GetSpellProto()->SpellIconID == 1680)
+    if ( GetSpellProto()->SpellFamilyName == SPELLFAMILY_HUNTER && GetSpellProto()->Id == 19574)
     {
         // The Beast Within cast on owner if talent present
         if ( Unit* owner = m_target->GetOwner() )