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/Bag.h

@@ -55,7 +55,7 @@ class Bag : public Item
         // overwrite virtual Item::SaveToDB
         void SaveToDB();
         // overwrite virtual Item::LoadFromDB
-        bool LoadFromDB(uint32 guid, uint64 owner_guid, QueryResult *result = NULL);
+        bool LoadFromDB(uint32 guid, uint64 owner_guid, QueryResult_AutoPtr result = QueryResult_AutoPtr(NULL));
         // overwrite virtual Item::DeleteFromDB
         void DeleteFromDB();