github/ReactiveCocoa — pull request #251 by jspahrsummers (2013-01-04 11:47:43+00:00)
Title: -replayLast

_Depends on #250._

Turns out that a `RACReplaySubject` of 1 is pretty useful in [RCL](https://github.com/github/ReactiveCocoaLayout) layouts, because a layout algorithm really only cares about the latest geometry for all its inputs, and connecting immediately doesn't generally cause problems.