Fixed ololoshke_trololoshke alias at count table name

Renamed 'ololoshke_trololoshke' alias at count table name to 'dbal_count_tbl' in DBAL Query Builder Subscriber.

This fixes #123 Scary "ololoshke_trololoshke" at the end of some queries. It makes easier understanding of query log.

src/Knp/Component/Pager/Event/Subscriber/Paginate/Doctrine/DBALQueryBuilderSubscriber.php

@@ -27,7 +27,7 @@ public function items(ItemsEvent $event)
             $qb
                 ->resetQueryParts()
                 ->select('count(*) as cnt')
-                ->from('(' . $sql . ')', 'ololoshke_trololoshke')
+                ->from('(' . $sql . ')', 'dbal_count_tbl')
             ;
 
             $event->count = $qb
@@ -60,4 +60,4 @@ public static function getSubscribedEvents()
             'knp_pager.items' => array('items', 10 /*make sure to transform before any further modifications*/)
         );
     }
-}
+}