Updated component packages to add branch-alias

Now that we have per-component repos, we need the ability to install
dev-stability packages. Currently, this can only be done if you specify
dev-master (which is auto-enabled via packagist), but not via dev-develop.
Additionally, you cannot specify version strings like "2.1-dev" or "2.2-dev", as
those aliases do not exist.

This patch adds dev-master and dev-develop aliases for each component.

composer.json

@@ -28,8 +28,8 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "2.4-dev",
-            "dev-develop": "2.5-dev"
+            "dev-master": "2.1-dev",
+            "dev-develop": "2.2-dev"
         }
     },
     "autoload-dev": {