Adafruit-circuitpython-ina219

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

To use in CPython, `pip install adafruit-circuitpython-ina219`.

Read the [docs](http://circuitpython.readthedocs.io/projects/ina219/en/latest/) for info on how to use it.

- Added `setup.py`
- Added PyPI release info to `.travis.yml`
- Updated `requirements.txt`
- Added a more comprehensive `.gitignore`

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

To use in CPython, `pip install adafruit-circuitpython-ina219`.

Read the [docs](http://circuitpython.readthedocs.io/projects/ina219/en/latest/) for info on how to use it.

Thanks to sommersoft for the great work!

Thanks to brentru for the great work!

Thanks to tannewt for the great work!

Release for CircuitPython 2.x versions. Note this might not work with CircuitPython 3.0+!