enable nova api v3

Signed-off-by: Emilien Macchi <emilien.macchi@enovance.com>
Update refs for ceilometer

Signed-off-by: Emilien Macchi <emilien.macchi@enovance.com>
glance: update mysql parameters
volume: drop useless parameters
volume: AZ support

Bring storage_availability_zone support.
Update to latest refs

Signed-off-by: Emilien Macchi <emilien.macchi@enovance.com>
Merge pull request #459 from enovance/icehouse-new-endpoints

Icehouse bugfixes