Merge topic 'DashboardFixes'

8cf1fe1 Moved include of language options before ITK external
b576084 Pass Python build variables to ITK from superbuild
Merge topic 'SIMPLEITK-349_RemoveGitHashFromNighlties'

a4a798b Tweak message for variables passed to ITK sub-project
8272ed5 Pass SimpleITK_* CMake variable from superbuild to external project
Merge branch 'master' into next

Change-Id: Ice48d2c00c197f97757f08cafa55c4470dd9bb89