Updated openstack/openstack
Project: openstack/requirements  06444d6472776ef355ec05875f31e6ce5d2740af

Update stevedore base version to 1.1.0

The 1.1.0 release of stevedore fixes a packaging issue that prevents the
documentation from some projects that use stevedore from building.
See Bug #1384919 for more details.

Change-Id: I1bd09144c6606e3aa9f0264143cca98265322cc3