Add Catena 4470 support, IDE LoRaWAN region control
v1.1.0 adds support for the MCCI Catena 4420 and 4470. It also adds the ability to select the target LoRaWAN region from the IDE Tools menu (assuming that you're using the MCCI Catena arduino-lmic library). It also fixes the USB product ID numbers to match the official numbers assigned by MCCI release engineering (issue #9).