Add 2.3 version

Author: hlecorche

composer.json

@@ -10,19 +10,19 @@
         }
     ],
     "require": {
-        "symfony/framework-bundle": ">=2.7.0, <2.8",
+        "symfony/framework-bundle": "~2.8",
         "twig/twig": "*",
         "doctrine/orm": "*",
         "doctrine/doctrine-bundle": "*",
-        "ecommit/util-bundle": "2.2.*@dev"
+        "ecommit/util-bundle": "2.3.*@dev"
     },
     "autoload": {
         "psr-0": { "Ecommit\\JavascriptBundle": "" }
     },
     "target-dir": "Ecommit/JavascriptBundle",
     "extra": {
         "branch-alias": {
-            "dev-master": "2.2.x-dev"
+            "dev-master": "2.3.x-dev"
         }
     }
 }