Updated openstack/openstack
Project: openstack-dev/devstack  5e3e8610aae5620be546884bb0b12b894050a903

Moving horizon compression offline

Making the horizon scss compilation and compression happen offline.
Potentially fixing an issue with parallel compression in devstack.

Related-Bug: #1345955
Change-Id: I066c80e06a92302a3f8dc5fd45d127fbde6cf99c