Copyright (C) 1997, 1998, 1999  Jeffrey C. O'NeillCopyright (C) 1998, 1999  Boston UniversityCopyright (C) 1997, 1998  L'Ecole Normale Superieure de LyonCopyright (C) 1997  The Regents of the University of MichiganAll Rights ReservedJeffrey O'Neill <jeffo@bu.edu>8 St. Mary's StreetBoston, MA 02135This program is free software; you can redistribute it and/ormodify it under the terms of the GNU General Public Licenseas published by the Free Software Foundation; either version 2of 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 ofMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See theGNU General Public License for more details.You should have received a copy of the GNU General Public Licensealong with this program; if not, write to the Free SoftwareFoundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.