Enhancements

Remove most of the old, unused Python code that complicates and slows deployments
Rollbar notifications for deployments
Digest events into digest.json files in preparation for graphs
TLS for everyone via Letsencrypt!
HTML5 mode for Angular (and corresponding nginx config)
Total rewrite of "asset pipeline" using Gulp, plus updating all front-end dependencies.
Have nginx serve static assets and remove ghc-app's responsibility to do so. Now all /api/ path-prefixed routes are simply handed to ghc-app.
Do not include vendored assets in source control (NPM will get them for us).

Commits