return query(user, xpath, howmany, start, prettyPrint, summary, encoding, null);
return query(user, xpath, howmany, start, prettyPrint, summary, namespaces, null);
	public String query(		User user,		String xpath,		int howmany,		int start,		boolean prettyPrint,		boolean summary,		String encoding)		throws Exception {		return query(user, xpath, howmany, start, prettyPrint, summary, encoding, null);	}