Core/Vehicles:

- Grab correct npc entry from npc_spellclick_spells in case of player vehicle. Fixes DB errors added in my previous changeset
- Allow aura's with SPELL_AURA_CONTROL_VEHICLE to stack if there are enough free seats, even if spellIds are identical.
- Fix a possible infinite loop. Thanks to manuel for spotting

src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_krickandick.cpp

@@ -162,7 +162,7 @@ class boss_ick : public CreatureScript
 
             void EnterCombat(Unit * /*who*/)
             {
-                _vehicle->InstallAllAccessories(me->GetEntry());
+                _vehicle->InstallAllAccessories();
 
                 if (Creature* krick = GetKrick())
                     DoScriptText(SAY_KRICK_AGGRO, krick);

src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_scourgelord_tyrannus.cpp

@@ -301,7 +301,7 @@ class boss_rimefang : public CreatureScript
 
             void JustReachedHome()
             {
-                _vehicle->InstallAllAccessories(me->GetEntry());
+                _vehicle->InstallAllAccessories();
             }
 
             void DoAction(const int32 actionId)

src/server/scripts/Northrend/Ulduar/ulduar/boss_flame_leviathan.cpp

@@ -366,7 +366,7 @@ public:
         void SpellHit(Unit* /*caster*/, const SpellEntry* pSpell)
         {
             if (pSpell->Id == SPELL_START_THE_ENGINE)
-                vehicle->InstallAllAccessories(me->GetEntry());
+                vehicle->InstallAllAccessories();
 
             if (pSpell->Id == SPELL_ELECTROSHOCK)
                 me->InterruptSpell(CURRENT_CHANNELED_SPELL);