adding a docker-compose setup to make it easier for developers to stand up the app

Add app.grant_duration config to control Avea grant time

Merge remote-tracking branch 'refs/remotes/origin/master'

ESP8266 RFID reader board

Backlink to CADLAB.io has been added.

Schematic and PCB for RFID control module.

Schematic and PCB for RFID reader module + WIP for ESP board/module

ESP8266 RFID reader sketch Updated sketch for ESP8266 based rfid reader. Added buzzer, indicator lights, and relay control.

Fix HB event log causing truncation error Fix HB event log causing truncation error

Renewal letter & updates to payment importer command Added templates for renewal email, as well as command for sending renewal email. Integrated with mailgun.