This patch updates all the roles to the latest available stable
SHA's, updates all the OpenStack Service SHA's and also updates
the appropriate python requirements pins.
Note that 'ceilometer_api' has been removed from the standard
tempest testing in the integrated build as the tests have been
removed from the tempest repository with
I0775bcc15dc9cbae6e075fe92f44b5f6c9b9d5d2
The ceilometer testing will have to be re-introduced using the
tempest plugin framework.
Change-Id: Iea7e4213893fb331c410c2d09e3258493f4643f3