ReactiveCocoa/ReactiveCocoa — pull request #1231 by kastiglione (2014-04-06 05:53:19+00:00)
Title: Update project per Xcode 5.1

Some notes:

* `ONLY_ACTIVE_ARCH`: Already defined in `Debug.xcconfig`. Xcode is just being blind.
* `ARCHS`: From the update dialog: "… remove the setting and allow Xcode to automatically select Architectures based on hardware available for the active platform and deployment target"