Adds a model spec for RoundRegistration
Rewrites user#courses_played

Now uses ActiveRecord
Tidies RoundRegistration spec up
Adds simple friendships#index action
Writes friendships#index view
Connects friend path to sidebar
Adds jquery UI
Adds a fake_input class to simple form
Adds simple friend autocomplete
Removes unneeded divs
Writes friendships#create action
Adds some awful TODOs
Removes unused seed data