[Insight-developers] Making Rigid3DTransform abstract

[Bill Lorensen]

Luis,

This gerrit topic http://review.source.kitware.com/#change,314 needs
some minor attention before it is acceptable. The topic seems to make
the Rigid3DTransform abstract, as stated. Looks good to me. However,
the test itkRigid3DTransformTest.cxx failed to compile. It is trying
to do a ::New() on itkRigid3DTransform which now does not have a new
method. I think the test should be removed.

I metion this because this one seems to be lingering.

Bill