[libvirt] RFC: virt-console

[John Levon <levon movementarian org>]

See implementation here:

http://cr.opensolaris.org/~johnlev/virt-console/

(inside libvirt.hg/patches/libvirt/virt-console)

This splits virsh console into a separate binary to allow it to be
setuid-root on Solaris (where we check permissions then drop privilege).
It also fixes a number of RFEs

This is against 0.4.0, so it's not ready for merging yet (I hope to get
it forward ported at some point).

regards
john