This software is Copyright (c) 2017, Magnum Solutions Ltd.

It 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 3, or (at your option) any later version, or

b) the "Artistic License 2".

[This distribution contains copies of both the GPL (in a file called "GPL")
and the Artistic Licence 2 (in a file called "Artistic"). If these files are
missing from your copy of the distribution, please contact the author, who
will be happy to supply them.]