Merge remote-tracking branch 'refs/remotes/origin/pep8-58' into reorganize-docs-99
Split out first sections of usage into separate documents.
Split off actions documentation.
Split off type system documentation.
All documentation is now split up.
Add some more subtitles for better navigation.
Slightly better titles.
Better phrasing.
Address review comments.
Merge remote-tracking branch 'refs/remotes/origin/master' into reorganize-docs-99
Merge pull request #106 from ClusterHQ/reorganize-docs-99

Reorganize documentation into multiple pages.

Fixes #99.