Publish to PyPI

[ghing]

Done. I had to push 2 releases, 0.1.0 and 0.1.1 because I forgot to update the installation instructions in 0.1.0.

The following were super helpful in figuring out best practices for packaging for PyPI:

• https://hynek.me/articles/sharing-your-labor-of-love-pypi-quick-and-dirty/
• http://peterdowns.com/posts/first-time-with-pypi.html
• https://gist.github.com/audreyr/5990987