Requiert unicaen/app zf-2.x

composer.json

@@ -8,7 +8,7 @@
         }
     ],
     "require": {
-        "unicaen/app":                          "^1.3",
+        "unicaen/app":                          "dev-zf-2.x",
         "zendframework/zend-test":              "^2.4",
         "phpunit/PHPUnit":                      "^5.6",
         "phpspec/prophecy":                     "^1.6"