[vtk-developers] update VTKData for rev. test image

[dean.inglis at on.aibn.com]

Hi all,

I've added 'margins' to vtkImagePlaneWidget to assist the user when doing oblique reslicing.  I've also revamped /Hybrid/Testing/Cxx/ImagePlaneWidget.cxx test as per /Hybrid/Testing/Cxx/BoxWidget.cxx to be driven with an interactor event string derived from vtkInteractorEventRecorder (hopefully, I havn't goofed on the test image cvs commit) so please update your VTKData repository accordingly.

There are also a few fixes to the code in vtkImagePlaneWidget.cxx here and there in light of Will's recent widget adjustments.

Dean