Copyright (c) 2004-2008 Gary Warren King (gwking@metabang.com) 

Permission is hereby granted, free of charge, to any person obtaining a 
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense, 
and/or sell copies of the Software, and to permit persons to whom the 
Software is furnished to do so, subject to the following conditions: 

The above copyright notice and this permission notice shall be included in 
all copies or substantial portions of the Software. 

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL 
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
DEALINGS IN THE SOFTWARE. 

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Copyright (c) 1994-2004 University of Massachusetts
Department of Computer Science
Experimental Knowledge Systems Laboratory
Professor Paul Cohen, Director.
All rights reserved.

Permission to use, copy, modify and distribute this software and its
documentation is hereby granted without fee for non-commercial uses
only (not for resale), provided that the above copyright notice of EKSL,
this paragraph and the one following appear in all copies and in
supporting documentation.

EKSL makes no representation about the suitability of this software for any
purposes.  It is provided "AS IS", without express or implied warranties
including (but not limited to) all implied warranties of merchantability
and fitness for a particular purpose, and notwithstanding any other
provision contained herein.  In no event shall EKSL be liable for any
special, indirect or consequential damages whatsoever resulting from loss
of use, data or profits, whether in an action of contract, negligence or
other tortuous action, arising out of or in connection with the use or
performance of this software, even if EKSL is advised of the possiblity
of such damages.

Thanks to

Marc Atkin, Brendan Burns, Andrew Hannon, Anuan Gao, Brent Heeringa,
Joshua Moody, Tim Oates, Michael O'Neil, Rob St. Amant, Charles Sutton,
Louis Theran, David Westbrook, and other former students and staff of 
EKSL.