depend on stable release tag

Author: xabbuh

composer.json

@@ -13,7 +13,7 @@
     "require": {
         "doctrine/common": "~2.4",
         "php-xapi/model": "^1.0",
-        "php-xapi/repository-api": "^0.3@dev",
+        "php-xapi/repository-api": "^0.3",
         "ramsey/uuid": "^2.9"
     },
     "require-dev": {