This commit was manufactured by cvs2svn to create tag 'T021502'.
moved material properties call into scope
added contact area print flag to ContactElementT
added Greenwood/Williamson contact area calculation
more work toward computation and output of real area of contact
added contact area calculation
added contact area calculation for Greenwood-Williamson model
cleaned up GreenwoodWilliamson.cpp
removed unneccesary call to linear penalty function
improved functionality of Greenwood & Williamson contact model
