Add OpenStack trove classifier for PyPI
Add OpenStack trove classifier for PyPI

Add trove classifier to have the client listed among the
other OpenStack-related projets on PyPI.

Change-Id: I34c47bde5885a3f436c100cda5202d6ad8356131
Signed-off-by: Doug Hellmann <8c845c26a3868dadec615703cd974244eb2ac6d1@dreamhost.com>

dtroyer/osc-lib