Lots of linty tweaks

Release prep

Release prep

Sync for release

Merge pull request #19 from OoriData/18-prompt-overriding

18 prompt overriding

0.4.1 release prep

- Add support for multiple workers & CORS headers (`--workers` & `--cors_origin` cmdline option)

0.4.0 release

Dependency bump

Bump CHANGELOG for release

Why tf did I think Coolio was from Oakland?