volume_image_metadata missing from volume list

The volume_image_metadata field was missing from the volume list
because we tried to filter VolumeGlanceMetadata against a non-existent
project_id field. Filtering should be done on the Volume associated
to the VolumeGlanceMetadata instead.

Move project_id filtering out of model_query as it assumes
the project_id field is in the queried model itself.
Build the filter ourselves against Volume.

Change-Id: I6053708296f2b5e24513dc87ed63da0f67c220ae
Closes-bug: #1337526
Sync processutils and log from oslo

This change syncs in:

33afb20 Fix broken formatting of processutils.execute log statement
5e3d3a5 Mask passwords included without quotes at the ends of commands
6751b30 Remove extra whitespace

The most important part is '33afb20' which was broken cinder debug logging
on running commands after last oslo sync.

Change-Id: I77e0f943d39bb34ff95bac1e9d63d7450f8c24bf
Merge "volume_image_metadata missing from volume list"
Merge "Sync processutils and log from oslo"