David A. Bagley <bagleyd AT verizon.net>

Thanks to :
Sarat Chandran <saratcmahadevan AT yahoo.com> - collaboration on a few ideas
Marcelo F. Vianna <mfvianna AT centroin.com.br> - OpenGL stuff
Michael B. Martin <martinm AT sps1.phys.vt.edu> - auto solve for 3x3x3
