Added features:
- Selectable MQTT payload format, JSON or RAW.
- Firmware upload from Web UI.
- Remote debugging, configurable from Web UI and accessible via Telnet.
- mDNS support. Hostname is configurable in Web UI.
- Added DNS as configuration option when using static IP.
Bug fixes:
- Fixed nearly invisible LED blink when MQTT is disabled.
- Fixed uptime rollover problem at 49.7 days.
- Corrected unixtime values for timestamps.
API changes:
- JSON field "up" changed from milliseconds to seconds
- Kaifa accumulated values changed from Wh to kWh