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/SkillExtraItems.cpp

@@ -59,7 +59,7 @@ void LoadSkillExtraItemTable()
     SkillExtraItemStore.clear();                            // need for reload
 
     //                                                 0        1                       2                       3
-    QueryResult *result = WorldDatabase.Query("SELECT spellId, requiredSpecialization, additionalCreateChance, additionalMaxNum FROM skill_extra_item_template");
+    QueryResult_AutoPtr result = WorldDatabase.Query("SELECT spellId, requiredSpecialization, additionalCreateChance, additionalMaxNum FROM skill_extra_item_template");
 
     if (result)
     {
@@ -108,8 +108,6 @@ void LoadSkillExtraItemTable()
             ++count;
         } while (result->NextRow());
 
-        delete result;
-
         sLog.outString();
         sLog.outString( ">> Loaded %u spell specialization definitions", count );
     }