Update Barbican resources to match library changes

This patch updates both Barbican resources and the client to match
recent changes in python-barbicanclient.

Closes-Bug: #1396283

Change-Id: I7a785fd68ffdcda0e622d576a555b3699c706b77
Remove ignoring [H302] in tox.ini

Change-Id: I5049d4108d3fa88fb7214034ddcd77f27bb8e84d
Merge "Remove ignoring [H302] in tox.ini"
Merge "Update Barbican resources to match library changes"