Rails 4.1! Zeus -> Spring & Secrets.yml
Bump rails to 4.1.0.rc1
Use bigfoot for footnotes

Nice work! http://www.bigfootjs.com/
Use CoffeeScript for app.js and meta.js
Drop thread_safe version, which was pulled
Manually set secret key base for Travis & Heroku

Not sure how secrets.yml can work if it needs to be kept out of source control
Fix Rails 4.1 asset compilation needing DB

See:
https://github.com/rails/rails/issues/14187
Bump Ruby to 2.1.1