ENH: Update Swig to 3.0.0

Change-Id: Ia2cf1562946298cfb9f3666ac0a461d78cc7319a
Merge topic 'Swig-3.0'

c6b21906 ENH: Update Swig to 3.0.0
STYLE: Remove WrapITK versions

Since WrapITK is now integrated in ITK there is no need to have separate version numbers for it.

Change-Id: I86f602ad6e04016273e440a124b73e2f49d9e553
Merge topic 'Remove-wrapitk-version'

5c935b22 STYLE: Remove WrapITK versions