Copyright (c) 2013 Stephen F. Siegel, University of Delaware.

This file is part of ABC.

ABC is free software: you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation, either version 3 of the License, or (at your
option) any later version.

ABC 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 Lesser General Public
License for more details.

You should have received a copy of the GNU Lesser General Public
License along with ABC. If not, see <http://www.gnu.org/licenses/>.

The GNU Lesser General Public License can be found in file 
LGPLv3, and the GNU General Public License is GPLv3.