Upgrade to Rails 4 with SQLite databases

Long story short, I created a brand new Rails 4 app, and migrated code over. It's probably very messy and I do plan on putting more commits into this branch before you pull it. However all of your code is retained and you're dealing with the same models, so I don't think you should run in to any problems. The only actual changes I made were to the models and database configurations.

I will be working on migrating the tests, and writing tests, since this has tests that pass now! Of course they are very simple tests, I wanted to get this pull request out so you can see my progress.

The hard part is going to be migrating your Mongo prod data into an SQL database. Your data isn't very complicated, so it shouldn't be horrible. Though I have no experience migrating databases.
Should these secrets be checked into source code?