BUG: Use -py3 when building wrapping for Python 3.

Change-Id: I76475c83204305f4c3d0268851f3ca7356b2690f
ENH: Add IOTransformDCMTK Remote module.

Change-Id: Ieaf3854139762b8b11309d9f67a218d95ff53b7f
STYLE: Remove include_regular_expression from Examples

This CMake clause was unnecessary and unused.
Removed to improve maintenance.

This work originally Done by Matt McCormick, but
was convoluted with another patch set.

Change-Id: Ia5874b44036f60fb6e79d9ece610027641fe641d
Merge topic 'Remove_include_regular_expressions'

8d06fc8d STYLE: Remove include_regular_expression from Examples
Merge topic 'DICOMTransformIO'

8aee8871 ENH: Add IOTransformDCMTK Remote module.
Merge topic 'PyInitPython3_release'

2b32fd24 BUG: Use -py3 when building wrapping for Python 3.