swift: Respect the OPENSTACK_SSL_NO_VERIFY setting

The swift API client connection does not respect the
OPENSTACK_SSL_NO_VERIFY setting in the local_settings.py.

As a result a SSL verfication error happens with a
self-signed certificate.

Closes-Bug: #1311357.

Change-Id: I907a8f7c5c631adfaf2ca66385749bb8e86734f2
Signed-off-by: Chuck Short <chuck.short@canonical.com>
Merge "swift: Respect the OPENSTACK_SSL_NO_VERIFY setting"