Enable the saving of remote host info in keys for IP and name
Merge pull request #4 from vdavidoff/record-remote-host

Enable the saving of remote host info in keys for IP and name
Enable configuration of a status key

* The key (string) defined by status_key will result in normal processing
  of the payload, but in addition the response body will contain the string
  defined by status_response. If there is no payload (no messages), this
  results in a simple status/health check. If status_tag is nil, this feature
  is effectively disabled.