Changes

** LAN IP addresses are not generated, the external IP address for that interface is (for a VPN, the exit portal of the VPN)

** If your router does not support 'hairpinning', a within-LAN call will end up being routed through an external TURN server

* '''media.peerconnection.enabled''' -- boolean (default true) -- enables/disabled ability to create RTCPeerConnection objects (all recent Firefox versions)