Updated openstack/openstack
Project: openstack/requirements  3f4031c66384623c37860c04a1eee4eb6c23ab54

Fix casing of xstatic-*

Although pip can technically handle package names case insensitively,
this is known to cause problems when using things like multiple packages
indexes.

Change-Id: I560b1d7a5885909b4d683e2ea0b38e75b536c38d