@ashfurrlw => RAC for some buttons triggering API requests

I added rac commands to several more buttons. Some of the buttons aren't wired up to trigger api requests yet, so I just substituted the api signal with an empty signal for now. Let me know if you see anything weird especially regarding things that might turn out to be nil.
wasn't sure where to move this `finishedSidnal.sendComplete()`, I'm assuming we'll only want to do that on success. I put it here for now.