Updated openstack/openstack
Project: openstack/python-novaclient  d0b6550d66fd7b67cddba2be42af9a3a40b122fa
null
Add classifiers for specific versions of Python

These are used by automated tools, such as caniusepython3
(https://github.com/brettcannon/caniusepython3) to check on what
version of Python the Nova client works.

Change-Id: Ie2a652a8c4797b1e1a69c91673e6009f36772667