code: public void getData(long id, MapDataChangesHandler handler, MapDataFactory factory)
  	{
  		osm.makeAuthenticatedRequest(CHANGESET + "/" + id + "/download", null,
  				new MapDataChangesParser(handler, factory));
  	}
docs: Get map data changes associated with the given changeset.
  
  @throws OsmAuthorizationException if not logged in
  @throws OsmNotFoundException if changeset with the given id does not exist