Updated openstack/openstack
Project: openstack/requirements  424b063e5faee86fb991566687231ecb1902e643

Add barbican and python-barbicanclient to projects

These projects are part of the integrated gates, we need to test
them.

Related-Bug: #1388414

Change-Id: I8024086cedb1d70e0586d681d0cbda851107c6b9