Copyright (C) 2010 NextGIS (http://nextgis.ru), Alexander Bruy (alexander.bruy@gmail.com), Maxim Dubinin (sim@gis-lab.info),
Copyright (C) 2014 Tom Kralidis (tomkralidis@gmail.com)
This source is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This code is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.