[libvirt|compute] Allow volumes to be cloned at the disk level
[libvirt|compute] Handle integer capacities
[ovirt] fixed interfaces and volume list.
The return list is now always fog object and not rbovirt objects.
Merge pull request #2767 from abenari/ovirt

[ovirt] fixed interfaces and volume list.
[google|compute] Change projects we search for images in.

This removes Google (which has no valid v1 images) and adds rhel-cloud
and suse-cloud. It also wraps the lookups in a catch block for not-found
exceptions because not everyone has access to everything.
Merge pull request #2735 from GregSutcliffe/master

Add ability to clone complete volumes to a new path
Merge pull request #2768 from icco/other_image_owners

[google|compute] Change projects we search for images in.