Scripts/HallsOfReflection: Major changes

* corrections to Intro Event (Falric, Marwyn etc.)
* fixed issues with Frostsworn General
* improved the whole Wrath of the Lich King event
* implemented outro gunship
* optimalization code and cleanup and fixed some typos
* Big thanks to @joschiwald, he is author too ;-)

src/server/game/AI/ScriptedAI/ScriptedCreature.cpp

@@ -478,10 +478,7 @@ void BossAI::_JustDied()
     events.Reset();
     summons.DespawnAll();
     if (instance)
-    {
         instance->SetBossState(_bossId, DONE);
-        instance->SaveToDB();
-    }
 }
 
 void BossAI::_EnterCombat()