Export of this software from the United States of America may 
require a specific license from the United States Government. 
It is the responsibility of any person or organization contemplating e
xport to obtain such a license before exporting.

WITHIN THAT CONSTRAINT, permission to use, copy, modify, and distribute 
this software and its documentation for any purpose and without fee is hereby granted, 
provided that the above copyright notice appear in all copies and that both that 
copyright notice and this permission notice appear in supporting documentation, 
and that the name of M.I.T. not be used in advertising or publicity pertaining 
to distribution of the software without specific, written 
prior permission. M.I.T. makes no representations about the suitability of 
this software for any purpose. It is provided "as is" without express or implied warranty.