Update to 1.x-dev

Author: alexander-schranz

composer.json

@@ -43,7 +43,7 @@
     "bin": ["bin/phpcrsh"],
     "extra": {
         "branch-alias": {
-            "dev-master": "1.2-dev"
+            "dev-master": "1.x-dev"
         }
     }
 }