Clean up started volume services in tests.

The test_preattach_status_volume test was failing due to state left by
another test. The interim solution was to skip the aforementioned test.
I tracked down the problem to 4 tests in test_admin_actions.py that
call self.start_service('volume', host='test'), and don't stop the
service. Stopping it in all 4 tests solves the problem.

HOWEVER, I don't know why these started services caused this particular
test to fail. I am still working to figure that out, but maybe someone
has an idea.

Change-Id: I2a5caaae9f61e7c7617c934917a10cf1cf3c0db6
Fixes: bug 1153108
Prevent create volume from snapshot with bad size

Prevent to create a volume from a snapshot with a volume size less
than the snapshot size.

Check if a volume size is specified that it is less than
the snapshot size.

Raise a exception if it's lesser.

Fixes bug 1161841

Change-Id: Ic1afbfb025ce0b3906c35c6c50a71734d74a9851
leave re-scheduled volume status to creating

A re-scheduled volume should not be exported and set to available

Fixes bug #1159027

Change-Id: Ie61d9132ce1bd6461d5e4d9836424ebf14100389
Fix cinder-manage backup list to work with uuids

Fixes bug #1164922

Change-Id: I8ed7ff7ca334b983d60445d96cd1f6c368766407
Allow deletion of backups where the service is None

If a backup is created while both cinder-backup and rabbitmq
are not running, backup records are created in the database with a
service entry of None.

There is no actual backup data created on the service, since the service
isn't running. This fix allows removal of these records without an error
when a delete backup request is received.

This fix also ensures backup status is set to error in the event of
an exception during a delete.

Fixes bug #1162908

Change-Id: I5771747a00a70621f7cc101f8c1da2f613e83cdf
Fixed a volume creation re-schedule error

Don't see any reason to construct a list for request_spec['volume_id'].
And it indeed causes problems when the scheduler receives a reschedule
request with such a request_spec.

Fixes bug #1164857

Change-Id: I811e957d5bf9c814165d55ea0042833ea72c8de5
Implement get_volume_stats for GlusterFS driver

Implement get_volume_stats(), so that the GlusterFS driver
will work correctly with the scheduler.

Fixes bug: 1164038

Change-Id: Ib4db8bad897212227b39704e2e6cb5f07f2bb70e
Remove update_volume_status log message from NFS driver

The manager logs an INFO message when this action occurs already,
and it not called by anyone else, so don't log twice:

INFO [cinder.volume.manager] Updating volume status
DEBUG [cinder.volume.drivers.nfs] Updating volume status

Change-Id: Id99be0c0e50837c2b59963d983b9a7db3d25919a
Don't hard code AUTH_ into the swift backup url

Instead make it configurable as part of the backup_swift_url option

Change-Id: I32019d8d4af2f8876da3807a5af3f0b921456935
Sync with oslo-incubator copy of setup.py

Keep up with the changes to the master copy

Change-Id: I6b87762a25f11c2548cd8df548a217295b8129d4
Reformat openstack-common.conf

Use the new 'module' option in openstack-common.conf which is a
multi-string option, allowing each module name to be placed on a
separate line.

This makes it much easier to review changes to the modules list.

Change-Id: I2b5c56dbf941b272bd89b0dbe6f651196d90944f