- core: add network enable knob separate from sleep/wake (rh #589108)
    - core: add multicast route for link-local IPv4 connections
    - core: fix connection sharing issues when a dnsmasq config file is present
    - wifi: add some debug messages to help (rh #594776)
    - wifi: lock connections to well-known SSIDs to that specific AP
    - applet: ensure deleted connections are really forgotten (rh #618973)