Updated openstack/openstack
Project: openstack/keystone  1ced28f669cae2d51253bd45f4a238192c478a6a
null
Setup code for auto-config sample generation

Sync in the oslo code for auto-config sample generation and
make the appropriate changes to setup to allow for automatic
option discovery.

`test-requirements.txt` now includes stevedore to
ensure the oslo libraries can all be loaded as expected.

Change-Id: Ieca0aea4d3c67b930c12467317d2f4d83763b601
Updated openstack/openstack
Project: openstack/nova  304a9b47bc8b271647863e613c524558c52daf61
null
Make is_neutron() thread-safe

The utils method is_neutron() was not thread safe and could have returned the
wrong value if two greenthreads called it at the same time.  Specifically, a
greenthread switch could occur when the import is being done.  At that point, it
looks like the check has already been completed, but the result has not yet been
recorded.

Closes-bug: #1274992
Change-Id: I5a6eedaeb4c0deee4b31509946ae5daedf98389d