This program is free software; you can redistribute it and/or modify
it under the terms of either:

a) the GNU General Public License as published by the Free Software
Foundation; either version 2, or (at your option) any later version, or

b) the "Artistic License"

This program is copyright

© 1999-2005 Gary Holt
© 2003-2007 Anders Johnson
© 2003-2013 Daniel Pfeiffer

and others for smaller submissions