Merge pull request friends-of-reactphp#42 from WyriHaximus/patch-2

Remove branch-alias definition as per reactphp/reactphp#343

Author: clue

composer.json

@@ -12,11 +12,6 @@
     "autoload": {
         "psr-0": { "React\\Stomp": "src" }
     },
-    "extra": {
-        "branch-alias": {
-            "dev-master": "0.2-dev"
-        }
-    },
     "require-dev": {
         "phpunit/phpunit": "4.3.*"
     }