Implement QueryResult_AutoPtr type which is ACE's reference counted auto_ptr(ACE_Refcounted_Auto_Ptr) for QueryResult pointers.

Use this auto_ptr for every DB queries(except QueryNamedResult yet).

This patch guarantees NO memory leaks from QueryResult pointers.

Thanks to raczman for the idea and for the helping to make this patch.

--HG--
branch : trunk

src/game/Item.h

@@ -240,7 +240,7 @@ class TRINITY_DLL_SPEC Item : public Object
         bool IsBindedNotWith(Player const* player) const;
         bool IsBoundByEnchant() const;
         virtual void SaveToDB();
-        virtual bool LoadFromDB(uint32 guid, uint64 owner_guid, QueryResult *result = NULL);
+        virtual bool LoadFromDB(uint32 guid, uint64 owner_guid, QueryResult_AutoPtr result = QueryResult_AutoPtr(NULL));
         virtual void DeleteFromDB();
         void DeleteFromInventoryDB();