Remove unnecessary Server.reboot function
Fix mocking for nova Server
Add availability zone selection in volume creation

Allows the availability zone to be selected when creating a volume.
The AZ dropdown will be hidden unless there is more than one AZ
available so there's no change to UX by default.

TODO: Cinder doesn't support listing AZs yet, so the list is
      currently taken from django.conf.settings.

Change-Id: I66a01c31a3e2b37bf4847b655e87666481bc2acf

Conflicts:

	openstack_dashboard/api/cinder.py
	openstack_dashboard/dashboards/project/volumes/forms.py
	openstack_dashboard/dashboards/project/volumes/tests.py
	openstack_dashboard/test/test_data/cinder_data.py

(cherry-picked from commit 0c557464cfd6748d9bf8739a2e6a33c0ef15501a)
Show AZ on instances table
Use a separate workflow step for cell selection
Disable volume AZ select for snapshot source

Change-Id: Ia53f1def7669a0368935e542646e4505d1091891
Show AZ on volumes table
Setting for role-based admin endpoint access
Fix adding underscored secgroups to instance
Don't include reserved in quota calculation
Log out user in response to unauthorized exception
Fix excessive volume_get requests in snaps table

The volume snapshots table has a column that shows the associated volume
name and links to its volume detail page. This calls volume_get twice
for each snapshot, so loading the Images & Snapshots page takes forever
if you have a decent number of snapshots.

This commit instead gets the volume list at the same time as the
volume snapshot list, and stores the volume as an attribute on
the snapshot so it can be easily retrieved later.

Closes-bug: 1218259
Change-Id: I004e50aae51a6ed7549da41967bc42babfa6cb45

Conflicts:
	openstack_dashboard/dashboards/project/images_and_snapshots/tests.py
	openstack_dashboard/dashboards/project/images_and_snapshots/views.py
	openstack_dashboard/dashboards/project/images_and_snapshots/volume_snapshots/tables.py
	openstack_dashboard/dashboards/project/instances/tests.py

(cherry-picked from commit f4d56fb134d7ec0be215b1794ab3e4c3382e5b2a)
Show volume snap ID in lieu of name
Show volume AZ in volume snapshots table