Update symfony2 with Redis instead of APC

frameworks/PHP/php-symfony2/app/config/config_prod.yml

@@ -13,9 +13,9 @@ framework:
 
 doctrine:
     orm:
-        metadata_cache_driver: apc
+        metadata_cache_driver: redis
         #result_cache_driver: apc
-        query_cache_driver: apc
+        query_cache_driver: redis
 
 monolog:
     handlers: