Merge pull request #178 from php-http/xabbuh-patch-1

bump branch alias

Author: dbu

composer.json

@@ -47,7 +47,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "2.0.x-dev"
+            "dev-master": "2.1.x-dev"
         }
     }
 }