Autorelease 0.1.0

[dwhswenson]

This is the public-ready version of Autorelease. Thanks to the ability to import Travis configs, this can now finally be the project I've wanted it to be -- easily used by different projects, my own or those of others.

More docs still need to be written, but the main idea is that you keep a particular branch stable from which you do your releases. When you want to do a release, you make a PR against stable. It runs tests and a test deployment; when merged it cuts a GitHub release and pushes the real deployment. All without you needing to worry about it!

Basic setup process is:

• vendor the setup.py and version.py scripts from here
• write your setup.cfg
• add a few environment variables to your Travis script: AUTORELEASE_TOKEN (a GitHub personal access token) and pypi credentials $TWINE_USERNAME and $TWINE_PASSWORD (should be the same for both pypi and testpypi)
• import dwhswenson/autorelease:autorelease-travis.yml@v0.1.0 in your Travis script
• optionally, write a small script to check that your branch/version behavior is correct

(Note: Version 0.1.0 is essentially a repackaging of 0.0.18, so there is no changelog here.)