Google oauth

Sorry the PR isn't totally cohesive. I'm going to start going through each file before committing to decide whether to add it to a particular commit. Agree with what you said about this in your email earlier today, Arlandis.
I would take a look at vision, gbr or possibly warehouse-bridge for an example of how to require less automatically and only what you need. I think essentially the only Rails think you depend on is "action_controller".

We can talk about this in person.