Endor cannot find vtk during smtk+python tests
The following are in its python path, and do not exist on Endor:
/home/kitware/dashboards/data/smtk/developer/lib/cmake/paraview-5.1/lib
/home/kitware/dashboards/data/smtk/developer/lib/cmake/paraview-5.1/lib/site-packages
/home/kitware/dashboards/data/smtk/developer/lib/python27.zip
/home/kitware/dashboards/data/smtk/developer/lib/python2.7/lib-old