/****************************************************************************
 *
 * MODULE:       general database maintenance routines (lib)
 *               
 * AUTHOR(S):    Michael Shapiro (original contributor),
 *               U.S.Army Construction Engineering Research Laboratory
 *               Radim Blazek <radim.blazek gmail.com>,
 *               Markus Neteler <neteler itc.it>,
 *               Paul Kelly <paul-grass stjohnspoint.co.uk>,
 *               Glynn Clements <glynn gclements.plus.com>, 
 *               Brad Douglas <rez touchofmadness.com>,
 *               Huidae Cho <grass4u gmail.com>,
 *               Cedric Shock <cedricgrass shockfamily.net>,
 *               Martin Landa <landa.martin gmail.com>,
 *               Hamish Bowman <hamish_b yahoo.com>
 *               
 * PURPOSE:      Maintenance operations on GRASS data base files
 *
 * COPYRIGHT:    (C) 1999-2007 by the GRASS Development Team
 *
 *               This program is free software under the GNU General Public
 *               License (>=v2). Read the file COPYING that comes with GRASS
 *               for details.
 *
 *****************************************************************************/