* Add support for custom IP/Port for NTP on ESP32
* Backport changes from esp32
* NTP port is not currently used
* Make pytz dep explicit and update alpine
* Add an ENV far for custom docker binding
* Delay in Arduino can be customized
* Fix 400 error with Arduino telemetry and Nginx
This was caused by the client not waiting for a response.
Also Content-Length header was bogus.
* Do not crash mqtt-to-db if devices isn't proviosioned
* Update READMEs
* Add MQTT support on Arduino
* Add MQTT simulator
* Use a single python simulator
* Minor improvements to dockerfiles
* Add transport internal field to telemetry
* Add PubSubClient