File _servicedata of Package namecoin

<servicedata>
  <service name="tar_scm">
    <param name="url">https://github.com/namecoin/namecoin-core.git</param>
    <param name="changesrevision">48779e465a92bde25460a06ef0f7635a45e43c83</param>
  </service>
</servicedata>