File _service of Package gangway

<services>
  <service name="tar_scm" mode="disabled">
    <param name="url">https://github.com/heptiolabs/gangway</param>
    <param name="scm">git</param>
    <param name="exclude">.git</param>
    <param name="versionformat">v3.1.0</param>
    <param name="revision">v3.1.0</param>
  </service>
  <service name="recompress" mode="disabled">
    <param name="file">*.tar</param>
    <param name="compression">gz</param>
  </service>
</services>