message: Updated param version to 6.0
diff: <param name="speed" type="Float" minvalue="0" maxvalue="500" mandatory="true" since="2.0" until="5.0"/>
  </history>
  </param>
  - <param name="shifted" type="Boolean" mandatory="false" since="5.2">
  + <param name="shifted" type="Boolean" mandatory="false" since="6.0">
  <description>
  True, if GPS lat/long, time, and altitude have been purposefully shifted (requires a proprietary algorithm to unshift).
  False, if the GPS data is raw and un-shifted.
  