[7607] Improvements in support some generic achievement classes Author: VladimirMangos

* Implement support achievements with refAchievement field != 0, that have criterias stored in achievement refAchievement.
    * Implement support achievement complete req. with specific count of completed critirias.
    * Avoid full achievement list scan at search achievement associated with criteria.

--HG--
branch : trunk

src/game/LootMgr.cpp

@@ -168,12 +168,12 @@ void LootStore::LoadLootTable()
 
         Verify();                                           // Checks validity of the loot store
 
-        sLog.outString("");
+        sLog.outString();
         sLog.outString( ">> Loaded %u loot definitions (%lu templates)", count, (unsigned long)m_LootTemplates.size());
     }
     else
     {
-        sLog.outString("");
+        sLog.outString();
         sLog.outErrorDb( ">> Loaded 0 loot definitions. DB table `%s` is empty.",GetName() );
     }
 }