- nm: IPv6 zeroconf support and fixes
    - nm: port to polkit (rh #499965)
    - nm: fixes for ehea devices (rh #511304) (rh #516591)
    - nm: work around PPP bug causing bogus nameservers for mobile broadband
        connections
    - editor: fix segfault with "Unlisted" plans in the mobile broadband
        assistant