- Added support for Kerlink 868 27dBm gateway
- Updated global_conf.eu868.json (in packet logger) to new LoRaWAN frequency plan
- Added version numbers to AGC, arbiter and calibration firmware (those versions are checked at startup)
- Added test_loragw_cal to test radio calibrations
- Fixed minor bug in error coverage in register read/write functions

/!\ warning: Kerlink 868 27dBm gateway includes a FPGA that MUST be programmed before running any application