Free queue config (thanks James)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@839 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_queue.c

@@ -839,6 +839,7 @@ static void reload_queues(void)
 		}
 		cat = ast_category_browse(cfg, cat);
 	}
+	ast_destroy(cfg);
 	q = queues;
 	ql = NULL;
 	while(q) {