Board version selectable and added support for v3

Fixed v1 compatibility

Fixed Serial output character issues

Upgraded to latest LMIC LoRaWAN stack.

Fixed compile warnings and other cleanups.

Changed pinout and functionality for hardware v2.

New firmware for new boards (added voltage reference readout)

Fixed some spreading factor bugs for the all-new Dramco UNO hardware platform.

First fixes for the all-new Dramco UNO hardware platform.

First production release of the all-new Dramco UNO hardware platform.