github/ReactiveCocoa — pull request #49 by jspahrsummers (2012-09-04 20:32:58+00:00)
Title: Refactored <RACSubscribable> into a concrete protocol

This renders the `RACSubscribable` category on `NSObject` unnecessary, and provides default implementations of all `RACSubscribable+Operations` methods to any class conforming to ``.