Refresh Oslo code - add support for ssl

We want to add ssl support for the reddwarf api server.
For this, updating the openstack/common/wsgi module, and
all it's dependencies as a result of using:
$> python update.py --base reddwarf --dest-dir ../reddwarf --modules wsgi
(details:https://wiki.openstack.org/wiki/Oslo)

I'm commenting out the "six" update, since it seems to break
our fake mode testing with regard to reddwarf-cli.

I'll open a separate bug for it.

Change-Id: I763d06658488bd1ca1eac5a2ba1ffde5629f842f
Fixes: Bug #1178421
Merge "Refresh Oslo code - add support for ssl"