Remove translation for debug message

Remove translation for debug message in neutron api layer.

Change-Id: I5b3ce1115d8f2c46f6c144f21e735a45f338cb32
Deprecate scheduler prep_resize

Scheduler prep_resize is no longer necessary as now the retries
from compute are going to the conductor.
Deprecating this method is also a prerequisite for the split
of the scheduler as it was issuing calls to computes.

Change-Id: I1092bbf7f541bb8cd7e33317f33b8c02761f284e
Clean nova.compute.resource_tracker:_update_usage_from_instances

Use cleaner if else statement.

Change-Id: I287eae65873e34cc115768fd5361cd56e6444fc4
API: Enable support for tenant option in nova absolute-limits

When querying for the absolute limits of a specific tenant,
the tenant option is ignored. There are no attempts to extract
the tenant from the request. Instead, nova uses context.project_id
as the project_id in QUOTAS.get_project_quotas. The following
patch extracts the tenant_id from the request (if any) and passes
that to QUOTAS.get_project_quotas to obtain the proper quota.

Change-Id: If5f91de020ed8a40fa04fc001c7c4c92681f4ad1
Closes-Bug: #1334278
libvirt: fill in metadata when launching instances

When generating the guest XML config, fill in the nova
specific metadata whose schema was previously defined.

Blueprint: libvirt-driver-domain-metadata
Change-Id: I3e1f0eb5bb0e71732a18609ff11f8ee6deb1a8da
Change LOG.warn to LOG.debug in _shutdown_instance

Change LOG.warn to LOG.debug for detaching volume related exceptions
in _shutdown_instance in compute/manager.py, since as the log message
said the exceptions should be ignored. It's probably not worth a
warning in the log.

Change-Id: Ibe216b9bccf590e64aa1b966753bd1ec67c8dbdf
libvirt: saving the lxc rootfs device in instance metadata

Currently, nbd/loop device, to which lxc image has been
connected, is being saved as instance root device, which causing
the attached bug.
Saving the device name in instance system metadata instead.

Closes-Bug: #1330981
Change-Id: I3a0533a89ea8af61349118a39b822f4af146cc04
Merge "Deprecate scheduler prep_resize"
Merge "libvirt: fill in metadata when launching instances"
Merge "Change LOG.warn to LOG.debug in _shutdown_instance"
Merge "libvirt: saving the lxc rootfs device in instance metadata"
Merge "Remove translation for debug message"
Merge "API: Enable support for tenant option in nova absolute-limits"
Merge "Clean nova.compute.resource_tracker:_update_usage_from_instances"