@ashfurrow => Cards, Login & Registration

This:
 * Supports checking if a user who has logged in has a registered card
 * Adds the register button to the front page and pops up a modal taking you directly into the new registration
 * Embeds the registrations flow as a child view controller inside a registration VC
 * Supports logging in via email/password and setting that as the new provider

![selfie-0](http://i.imgur.com/HM6K2zo.gif)

Is the wrapping-in-parens necessary? Isn't it sufficient to just `return self.navigationController as? FulfillmentNavigationController`?