Merge pull request #296 from jsocol/release/v4.1

Release v4.1

Merge pull request #274 from jsocol/release/v4

Release v4

Version 3.0.1

Docs version

Version 2.0.0

Version 1.1.0

- Explicitly set cache timeout to slightly longer than window
- Test on Django versions 1.11, 2.0
- Add Django classifiers

Version 1.0.1

Version 1.0.0

Version 0.6.0

Fix my email address