* 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 some tests
* Add an example of NTP with encryption
* Enable TravisCI
* Run sims via Docker
* Improve simulators stage
* Final fix for travis
* Add README docs [skip ci]
* 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