Abstracted subscriptive logic away from the ballroom.setup module making it so the sessions parameter can take a dict of parameters rather than simply a boolean. The intention is, this code shouldn't have to be touched by the user in the future, they should be able to pass in kwargs to achieve any functionality.
Moved some implementation specific details out of ballroom.setup into the main waltz application, namely default session parameters.
Removed a lingering print statement within auth