      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 export 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 Richard P. Basch, Lehman Brothers and M.I.T. not be
   used in advertising or publicity pertaining to distribution of the
   software without specific, written prior permission.  Richard P.
   Basch, Lehman Brothers and M.I.T. make no representations about the
   suitability of this software for any purpose.  It is provided "as
   is" without express or implied warranty.