@ashfurrow => place bids & real card swiping

![selfie-2](http://i.imgur.com/l7VIQ7o.gif)
(looped well!)

* So we have to use this crazy init func: `CFTReader(andConnect: ())` in the library, so previously it wasn't working, now it should be using the card reader for realsies.
* With that in I wanted to get bidding working, so I added a new view controller which exists to show the "placing a bid" and then moves into a different VC once we've confirmed you've either won or lost.
* Moved all stubbedJSON into their own folder

So this is what's referred to in the ReactiveCocoa world as a "hot signal" – one that performs work when created instead of a "cold signal", which does work only when subscribed to. Cold signals are generally preferred to hot ones, and you are subscribing to this anyway, so it'd probably be a good idea to do something like:

```swift
return signal.doNext { /* whatevs */ }
```