[vtkusers] vtkMeshQuality broken?

[David C Thompson]

> vtkMeshQuality does not work for me any longer (both C++ and python). I do as 
> simple as: vtkUnstructuredGridReader -> vtkMeshQuality -> 
> vtkUnstructuredGridWriter with setting Input/Output connections as usual. It 
> always worked now not anymore. In the docs I read about some compatibility 
> issues (VolumeOn, RatioOn()) - were there recent changes? The test referred 
> to there (meshQuality.py) does not work.
Can your provide more information about what doesn't work? Does the
filter not compile, not run, yield no results, or incorrect results?

	Thanks,
	David