Enhancements:
- Support Friends of Hue switches, see #466. Not yet tested for deCONZ.
- Hue tap: add buttons 5 and 6 for press/release 1 and 2 simultaneously and press/release 3 and 4 simulteneously.
Bug fix:
- Include port number (other than 80) in UPnP discovery. This would cause homebridge-hue to prevent homebridge from starting its server, when automatic discovery was on and deCONZ was using a port other than 80.
Bump dependencies:
- homebridge-hue-utils v2.0.18;
- homebridge-lib v4.2.3;
- ws v7.0.0.