Add excluded-regions and included-regions for GIT

There is now code to take a list of excluded and a list of
included locations.  excludedRegions was removed from the mapping
as it was determined not to do anything.

Change-Id: I0e3003540ea1bc1aa19ef9e478be650e8c85ceaa
Reviewed-on: https://review.openstack.org/32414
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Approved: James E. Blair <corvus@inaugust.com>
Reviewed-by: James E. Blair <corvus@inaugust.com>
Tested-by: Jenkins