Steve Worley's reference implementation of Worley Noise was originally licensed
under the following terms:

   Copyright 1994, 2002 by Steven Worley
   This software may be modified and redistributed without restriction
   provided this comment header remains intact in the source code.
   This code is provided with no warrantee, express or implied, for
   any purpose.

While these terms are quite permissive, they do not reflect the text of a
common, OSI approved license. On December 19, 2012 Steve agreed to release the
code under the MIT license.

   It's no problem at all to relicense the code to standardize it.
   Please go ahead and change the header to show an MIT license.

-- bh