*[8474] Allow to delete BattleGround objects when any of invited players didn't click to enter battle. Rename m_TeamScores500disadvantage to m_TeamScores500Disadvantage, and optimize its update. Patch is tested. Author: Triply

*Added some missed changes that might of broken compile in the last 2~ commits.
*Some fixes to Warlock's Death Coil by Gyullo.
*Last MaNGOS merge until KingPin says otherwise..

--HG--
branch : trunk

src/game/PoolHandler.h

@@ -43,7 +43,7 @@ class PoolGroup
     public:
         PoolGroup();
         ~PoolGroup() {};
-        bool isEmpty() { return ExplicitlyChanced.size()==0 && EqualChanced.size()==0; }
+        bool isEmpty() { return ExplicitlyChanced.empty() && EqualChanced.empty(); }
         void AddEntry(PoolObject& poolitem, uint32 maxentries);
         bool CheckPool(void);
         uint32 RollOne(void);