[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/2cb5a95... : FAILURE in 2m 13s - periodic-horizon-python27-kilo http://logs.openstack.org/periodic-stable/periodic-horizon-python27-kilo/feb... : FAILURE in 2m 16s - periodic-horizon-docs-liberty http://logs.openstack.org/periodic-stable/periodic-horizon-docs-liberty/217c... : SUCCESS in 3m 39s - periodic-horizon-python27-liberty http://logs.openstack.org/periodic-stable/periodic-horizon-python27-liberty/... : SUCCESS in 6m 59s