Adafruit-circuitpython-ds3502

This release fixes typos

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

To use in CPython, `pip3 install adafruit-circuitpython-ds3502`.

Read the [docs](http://circuitpython.readthedocs.io/projects/ds3502/en/latest/) for info on how to use it.

This release includes updated examples such as
* improved simpletest
* new example for blinka boards without an ADC
* an example to show setting the default wiper value

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

To use in CPython, `pip3 install adafruit-circuitpython-ds3502`.

Read the [docs](http://circuitpython.readthedocs.io/projects/ds3502/en/latest/) for info on how to use it.

This release includes
* Setting the wiper value
* Setting the default value for the wiper

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

To use in CPython, `pip3 install adafruit-circuitpython-ds3502`.