Make Reviews page use common status header/footer

Switch http://status.openstack.org/reviews/ to use the common
status.o.o header and footer powered by common.js.

Change-Id: I6e742771bf9fe5b4732e0fc7abb82b8d2c623917
Reviewed-on: https://review.openstack.org/30168
Approved: Dan Prince <dprince@redhat.com>
Reviewed-by: Dan Prince <dprince@redhat.com>
Tested-by: Jenkins