This is free software: you can redistribute it and/or modify
it under the terms of the GNU Public License as published by
the Free Software Foundation, either version 3 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 Public License for more details.
You should have received a copy of the GNU Public License
along with this code. If not, see http://www.gnu.org/licenses/