@ashfurrow => RACify the keypad view

Keypad input sends is a stream man.
The bid view controller subscribes and passes sends the input to a textfield.

RAC Tests well using Dependency Injection, good advice on that. The technique is just changing the RAC stream that fakes the  keypad input triggers so that in tests it's runtimeable. Cool. :+1: 
I think I'm supposed to remind you to make a note of this for your book. Or maybe I'm making it up, in which case, let me know and I'll write a blog post for the Artsy blog.