v2.4.0

[lkankowski]

New features:

• Additional architectures: ESP8266, ESP32 (experimental)
• Ethernet (LAN or MQTT) with W5100 or ENC28J60
• Add multiple hardware combinations to platformio.ini so the user doesn't need to customize it so often
• add EEPROM_OFFSET option

Improvements:

• Change button logic to be more independent from relays
• Create wrapper for MySensors dependency so it can be better tested

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This discussion was created from the release v2.4.0.