- Expose server-returned DHCP options via D-Bus
    - Use avahi-autoipd rather than old built-in IPv4LL implementation
    - Send hostname to DHCP server if provided (DHCP_HOSTNAME ifcfg option)
    - Support sending DHCP Client Identifier to DHCP server
    - Allow forcing 802.1x PEAP Label to '0'
    - Make connection sharing more robust
    - Show status for shared and Ad-Hoc connections if no other connection is
        active