def scan_status(scan_id)
      r = execute(make_xml('ScanStatusRequest', 'scan-id' => scan_id))
      r.success ? r.attributes['status'] : nil
    end
def scan_status(scan_id)
      r = execute(make_xml('ScanStatusRequest', 'scan-id' => scan_id))
      r.success ? r.attributes['status'] : nil
    end
Retrieve the status of a scan.

 @param [Fixnum] scan_id The scan ID.
 @return [String] Current status of the scan. See Nexpose::Scan::Status.