Fixing code style issues.

Added new line to the end of file.

Author: mage2-dev

src/MagentoHackathon/Composer/Magento/PackageTypes.php

@@ -19,4 +19,4 @@ class PackageTypes {
         'magento2-language' =>  '/app/i18n/',
         'magento2-component'=>  './',
     );
-}
+}