ReactiveCocoa/ReactiveCocoa — pull request #1505 by jspahrsummers (2014-09-27 05:24:10+00:00)
Title: Migrate from swiftz to LlamaKit

[LlamaKit](https://github.com/LlamaKit/LlamaKit) is going to provide just the bare minimum types that any library would want (like `Result` and `Box`), so let's use that instead of swiftz.