We may need a few more bumps - specifically for some upstream projects
that don't have a stable/pike branch yet. Namely:
swift
magnum
magnum_dashboard
nova-lxd
ceilometer
aodh
dragonflow
We should move to a SHA-bump approach from now to allow us to release
RC1 and further RCs without having to re-pin role SHA's.
Additionally, since the endpoint for placement has changed to / instead
of /placement the healthchk needs to anticipate a "401 - Unauthorized".
Change-Id: Iccc4d4b7aa3a69eb3c87e50aaae9ccb7b4b7135e