- Fix crash when activating a mobile broadband connection
    - Better handling of non-SSID-broadcasting APs on kernels that support it
        (gnome.org #464215) (rh #373841)
    - Honor DHCP-server provided MTU if present (gnome.org #332953)
    - Use previous DNS settings if the VPN concentrator doesn't provide any
        (gnome.org #346833)