Fix the tcl-to-python conversion for a few tests.

Note that TestTransformInterpolator.py is still failing, as is the
TestTransformInterpolator.tcl script it was converted from.  It will
have to be determined what has changed in VTK 6 that causes this test
to fail.

Change-Id: I272804d77117f902003af814ca8bf10be0282d9e
Regenerate meshQuality.py from the more complete meshQuality.cxx

Change-Id: I54388b3d367ac9ef3778442d3cf33c111f21c948
Merge topic 'python-test-syntax' into master

e47635fa Regenerate meshQuality.py from the more complete meshQuality.cxx
a2dea487 Fix the tcl-to-python conversion for a few tests.