Copyright 2007 by New York University and The University of Texas at Austin

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 names of New York University and The University of Texas at Austin not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission.