Fix header size trait attribute of image data reader2 to long type.
Set an interactor prior to enabling and disabling a widget
Upgrade plot 3d reader to multiblock plot 3d reader
Remove unnecessary setting of interactor
Fix mlab pipeline test for vtk 5.10.1 and greater
Remove the change made for setting widget interactor
Fix formatting in comment
Revert incorrect change of bounds after moving to multiblock plot3d reader
Skipping plot 3d reader test, broken in version 5.10.1
Merge pull request #97 from dmsurti/upgrade-vtk-5-10-1-fixes

Fix mayavi tests after upgrading to vtk 5.10.1 (old pipeline)