Scripts/Icecrown Citadel: Added Lady Deathwhisper script, huge thanks to wowgargamel for script parts, timers and sniffs

Core/Scripts: Added GetPhaseMask() method to EventMap

--HG--
branch : trunk

src/server/game/Scripting/ScriptLoader.cpp

@@ -418,6 +418,7 @@ void AddSC_halls_of_reflection();
 void AddSC_boss_falric();
 void AddSC_boss_marwyn();
 void AddSC_boss_lord_marrowgar();       // Icecrown Citadel
+void AddSC_boss_lady_deathwhisper();
 void AddSC_instance_icecrown_citadel();
 
 void AddSC_dalaran();
@@ -1082,6 +1083,7 @@ void AddNorthrendScripts()
     AddSC_boss_falric();
     AddSC_boss_marwyn();
     AddSC_boss_lord_marrowgar();        // Icecrown Citadel
+    AddSC_boss_lady_deathwhisper();
     AddSC_instance_icecrown_citadel();
 
     AddSC_dalaran();