Fix error causing 3D plots to hang
Merge pull request #940 from UV-CDAT/vcs3D-fix_3d_plot_hanging

Fix error causing 3D plots to hang
Fix scripting var input from file
Merge branch 'vcs3D_features_for_v2.3' of git://github.com/UV-CDAT/uvcdat into vcs3D_features_for_v2.3