COMP: Update python-cmake-buildsystem to address NUMPY build issue

This commit fixes a regression introduced in r25955 (ENH: Update
python-cmake-buildsystem version) and python-cmake-buildsystem/python-cmake-buildsystem@9cce62e

See 0004366

Update details:

$ git shortlog 30b0d56..d0f4719 --no-merges
Isaiah Norton (1):
Fix broken python2.7 config location

Thanks: Isaiah Norton <inorton@bwh.harvard.edu>

git-svn-id: http://svn.slicer.org/Slicer4/trunk@25986 3bd1e089-480b-0410-8dfb-8563597acbee