Read baremetal images from extra_specs namespace.

Baremetal PXE driver should read deploy_kernel_id & deploy_ramdisk_id
from the 'baremetal:' namespace within instance_type['extra_specs']
so that it doesn't conflict with ComputeCapabilitiesFilter any more.

Fixes bug 1129485.

Change-Id: I84b3acb2ed83dc2b1ff8f1a21ca1d95f7d25751a
Add missing action_start if deleting resized inst.

When trying to delete a resized instance Nova will automatically
call confirm on the resized instance to help clean things
up. With some of the recent action event changes in grizzly this
code path was broken due to a missing record_action_start
call on the confirm_resize operation.

Fixes LP Bug #1147387.

Change-Id: I23e84de8675c980656a71b71e34ffa0a0801f389
Merge "Read baremetal images from extra_specs namespace."
Merge "Add missing action_start if deleting resized inst."