[Users] ovirt-node on Gentoo

[Perry Myers]

> This means that network manager no longer pulls gnome-related
> packages, which is very good news. If this is the case in other
> distro's I think we can converge on this solution.

mburns did a test on this yesterday and confirmed that on Fedora it also
does not pull in Gnome/X, so it looks like on both Fedora/Gentoo we're
good with NM.

Still hoping for dwilliams to chime in on my questions from yesterday on
this thread :)