6.2.1.12 20181007
* Fix Shelly1 switchmode 3 and 4 when using pushbutton (#3989)
* Add support for CSL Aplic WDP 303075 Power Socket with Energy Monitoring (#3991, #3996)
6.2.1.11 20191002
* Remove support for MQTT Client based on esp-mqtt-arduino by #define MQTT_LIBRARY_TYPE MQTT_ESPMQTTARDUINO
* Add support for MQTT Client based on lwmqtt to be selected by #define MQTT_LIBRARY_TYPE MQTT_ARDUINOMQTT
6.2.1.6 20180922
* Removed commands PowerCal, VoltageCal and CurrentCal as more functionality is provided by commands PowerSet, VoltageSet and CurrentSet
* Allow decimals as input to commands PowerSet, VoltageSet and CurrentSet
* Add support for PCA9685 12bit 16pin hardware PWM driver (#3866)