[Merge] ~paelzer/ubuntu/+source/nova:fix-libvirt-dependency into ~ubuntu-server-dev/ubuntu/+source/nova:master

[ChristianEhrhardt]

This surely does no more apply, but the change is so trivial that carry forward on your own as needed.
I wanted to ask if there is any update on this?
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https://code.launchpad.net/~paelzer/ubuntu/+source/nova/+git/nova/+merge/324778
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