Copyright 1990 by the Massachusetts Institute of Technology, Cambridge MA.

Permission  to  use,  copy, modify, and distribute this software  and  its
documentation for any purpose  and without fee is hereby granted, provided
that this copyright  and  permission  notice  appear  in  all  copies  and
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.

M.I.T. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,  INCLUDING
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
M.I.T. BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL  DAMAGES  OR
ANY  DAMAGES  WHATSOEVER  RESULTING  FROM  LOSS OF USE, DATA OR PROFITS,
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER  TORTIOUS  ACTION,
ARISING  OUT  OF  OR  IN  CONNECTION WITH THE USE OR PERFORMANCE OF THIS
SOFTWARE.
