Adafruit-circuitpython-adafruitio

Updated dependencies to use PyPI names, as well as removed unnecessary packages. Also moved optional dependencies from examples into `optional_requirements.txt`. Thanks Neradoc!

To use in CircuitPython, simply install the [Adafruit CircuitPython Bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install adafruit-circuitpython-adafruitio`.

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

To use in CircuitPython, simply install the [Adafruit CircuitPython Bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install adafruit-circuitpython-adafruitio`.

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

To use in CircuitPython, simply install the [Adafruit CircuitPython Bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install adafruit-circuitpython-adafruitio`.

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

To use in CircuitPython, simply install the [Adafruit CircuitPython Bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install adafruit-circuitpython-adafruitio`.

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

This release contains a fix for unsubscribing from a group feed. Thank you awgrover

To use in CircuitPython, simply install the [Adafruit CircuitPython Bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install adafruit-circuitpython-adafruitio`.

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

Documentation updated to help ReadTheDocs display the documentation properly. Thanks Neradoc!

To use in CircuitPython, simply install the [Adafruit CircuitPython Bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install adafruit-circuitpython-adafruitio`.

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