Incomplete C++ port of campskeleton (written in Java). Currently working for
a simple straight skeleton, weighted (not capped or offset).

Campskeleton available here:
    http://code.google.com/p/campskeleton/

Original author twak, his information about the skeleton:
    http://twak.blogspot.co.nz/2009/10/skeleton-index-page.html

-Tom Cornall, June 2012