Copyright Massachusetts Institute of Technology (MIT), USA and/or John Leonard.

The software is released under the GNU General Public License, 
described below.

//   This program is free software; you can redistribute it and/or 
//   modify it under the terms of the GNU General Public License as 
//   published by the Free Software Foundation; either version 2 of the 
//   License, or (at your option) any later version. 
//		  
//   This program 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 
//   General Public License for more details. 
//			
//   You should have received a copy of the GNU General Public License 
//   along with this program; if not, write to:
//
//   Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
//   MA 02110-1301, USA.

The full text of this software's license should be available on this computer
in the file:
/usr/share/common-licenses/GPL-2