Commercial licence for polyparse.

Copyright 2006-2014, Malcolm Wallace (malcolm.wallace@me.com)
All rights reserved.

* This software, built from original unmodified sources, may be used for
  any purpose whatsoever, without restriction.

* Redistribution in binary form, without modification, is permitted
  provided that the above copyright notice, these conditions and the
  following disclaimer are reproduced in the documentation and/or other
  materials provided with the distribution.

* Redistribution in source form, with or without modification, is not
  permitted under this license.

THIS SOFTWARE IS PROVIDED BY Malcolm Wallace
AND THE CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
Malcolm Wallace OR THE CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
DAMAGE.