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

The software is  provided "as is", without warranty of any kind, including all
implied warranties of merchantability and fitness. In no event shall the authors or
copyright holders be liable for any claim, damages, or other liability, whether in an
action of contract, tort, or otherwise, arising from, out of, or in connection with
the software or the use or other dealings in the software.