Copyright 2012 The Board of Regents of the University of Wisconsin System. Contributors: Jason Shao, James McCurdy, Enhai Xie, Adam G.W. Halstead, Michael H. Whitney, Nathan DiPiazza, Trey K. Sato and Yury V. Bukhman This file is part of GCAT. GCAT 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. GCAT 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 GCAT. If not, see .