Comment 19 for bug 1577839

This needs to be reopened. Keystone deployment still fails (identical to original bug description) with:
ContextualVersionConflict: (iso8601 0.1.10 (/usr/lib/python2.7/dist-packages), Requirement.parse('iso8601>=0.1.11'), set(['oslo.concurrency']))

mos-packaging team, please take necessary care to ensure all keystone dependencies are corrected, rather than hurrying to mark this bug fixed.