Adafruit-circuitpython-azureiot

* Fixed TravisCI to deploy .mpy assets with release

To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://github.com/adafruit/Adafruit_CircuitPython_Bundle).

Read the [docs](https://circuitpython.readthedocs.io/projects/azureiot/en/latest/) for info on how to use it.