Merge pull request #150 from GrahamCampbell/patch-1

A better branch alias would be 2.0.x

Author: dbu

composer.json

@@ -47,7 +47,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "2.x-dev"
+            "dev-master": "2.0.x-dev"
         }
     }
 }