v.2.1.1
Maintenance release
MQTT client reworked:
- Added base64 encoding
- Repair rcommand processing over MQTT
Bugfixes:
- remove redundant LORA_RST pin definition from lopy4.h
- fix compiler error occuring with enter_deepsleep() for devices without button (Issue #697)
- remove DIO IRQ support, while not safely introduced for ESP32 in MCCI LMIC (see mcci-catena/arduino-lmic#556)