Enhancements:
- Support Hue outdoor motion sensor (see dresden-elektronik/deconz-rest-plugin#1201);
- Use default colour gamut for MLI lights (see #439);
- Support Eurotronic Spirit Zigbee thermostat (see #426). Note that this needs dresden-elektronik/deconz-rest-plugin#1230.
Bump dependencies:
- homebridge-lib v4.0.6;
- homebridge-hue-utils v2.0.10.