ReactiveCocoa/ReactiveCocoa — pull request #1416 by vmartinelli (2014-07-18 03:08:28+00:00)
Title: Simplifying Producer and Consumer calls

Hello again.

I wrote some extensions to Producer and Consumer to allow calls like this:

```swift
imageDownloadManager
.imageProducer(imageURL: imageURL)
.deliverOn(MainScheduler())
.next { image in
cell.image = image
}
.error { error in
cell.image = nil
}
```

(The example above is based on a running code.)

What do you think?