[Openstack-stable-maint] Stable check of openstack/horizon failed

Build failed. - periodic-horizon-docs-kilo http://logs.openstack.org/periodic-stable/periodic-horizon-docs-kilo/fccb03b... : FAILURE in 2m 03s - periodic-horizon-python27-kilo http://logs.openstack.org/periodic-stable/periodic-horizon-python27-kilo/e88... : FAILURE in 2m 15s - periodic-horizon-docs-liberty http://logs.openstack.org/periodic-stable/periodic-horizon-docs-liberty/6c94... : SUCCESS in 3m 34s - periodic-horizon-python27-liberty http://logs.openstack.org/periodic-stable/periodic-horizon-python27-liberty/... : SUCCESS in 7m 04s