Sandia National Laboratories recently changed management from the
Sandia Corporation to the National Technology & Engineering Solutions
of Sandia, LLC (NTESS). The copyright statements need to be updated
accordingly.
Instead of labeling each method that needs to have visibility
we can label entire classes, this reduces the amount of noise and
potential for mistakes when writing classes.
The remove boost::shared_ptr and the rendering library branches where
developed simultaneously, and thus some of the rendering library
implementation was using boost::shared_ptr like the old code. Bring up
to date with the rest of VTK-m by using std::shared_ptr instead.
