Merge remote-tracking branch 'origin/fixes-to-standalone-vgl' into fix_clipping_and_zoom

* origin/fixes-to-standalone-vgl:
  Fixing test files to use correct path to JS files
  Deploy testing if testing is enabled
  Create deploy and lib directory if needed
  Updated test code to use standalone vgl
  Check if DEPLOY_LIB_DIR not set and set it.
Fixed trackball interactor style clipping on rotate
Removed dead code
Fixed broken zoom for trackball interactor style
Merge remote-tracking branch 'origin/fix_clipping_and_zoom' into next

* origin/fix_clipping_and_zoom:
  Fixed broken zoom for trackball interactor style
  Removed dead code
  Fixed trackball interactor style clipping on rotate