Beginning of Scala/Java implementation, because why not?
Indentation should be consistent.
Initial client class.
Class consolidation.
Saving tokens is back.
Playing around with JSON.
More things moved from the client class to the object.
Still rearranging. Taking some style from the Scala API.
Beginnings of specific API calls.

I'd love to get some code generation in here. Otherwise, this thing
will look like a very big mess of one line functions to one common
helper function.
The user is now responsible for getting/saving access tokens.
getActivity parses JSON and creates a list now. Added a resource class.
Let's be serious, this project has changed.