Merge topic 'SIMPLEITK-467_UpdateITKSuperbuildTowards4.5.1'

4b501fe5 Updating ITK superbuild version along 4.5.0 release branch
9b75a955 Moving ITK superbuild version along ITK v4.5.0 release branch
Merge topic 'SIMPLEITK-491_MarkAsAdvancedITK_Wrapping'

59705130 ENH: Mark WrapITK cmake option as advanced
Merge topic 'SIMPLEITK-482_UpdateSWIGTo2.0.12'

96dda78f ENH: Updating SWIG superbuild to 2.0.12 official release
Merge topic 'SIMPLEITK-472_Enable64BitsIDSOnWindows'

c22a050b Add '_' prefix to variable not to be propagated to ITK project
Merge topic 'SIMPLEITK-492_FixWarnings'

cc2742a2 Adding warning suppression for some wrapped language details.
d3c8e74f add compiler flat to not  warnings about the many unused typedefs
f0d3e66f Adding compiler flag to suppress the following warning
5ac54209 Update suppressed warnings for newer versions.
Updating ITK to v4.5.1 tag

Change-Id: Iec82d6f82e30d8bcf1c82af082e129c9fb9df365
Merge topic 'SIMPLEITK-467_UpdateITKSuperbuildTowards4.5.1' into next

c68f953a Updating ITK to v4.5.1 tag
Merge branch 'master' into next

Change-Id: I1e825fbda6331de8c753dee76c140dd836199027