updated requires

composer.json

@@ -35,9 +35,9 @@
         "sensio/framework-extra-bundle": "dev-master",
         "sensio/generator-bundle": "dev-master",
         "snc/redis-bundle": "dev-master",
-        "symfony/assetic-bundle": "dev-master",
-        "symfony/monolog-bundle": "dev-master",
-        "symfony/swiftmailer-bundle": "dev-master",
+        "symfony/assetic-bundle": "2.1.*",
+        "symfony/monolog-bundle": "2.1.*",
+        "symfony/swiftmailer-bundle": "2.1.*",
         "symfony/symfony": "2.1.*",
         "twig/extensions": "dev-master",
         "white-october/pagerfanta-bundle": "dev-master"