ReactiveCocoa/ReactiveCocoa — pull request #553 by jspahrsummers (2013-06-01 07:53:19+00:00)
Title: Optimize NSObject+RACKVOWrapper and RACCompoundDisposable

In really intricate RAC code, these guys get used a lot. This applies a few micro-optimizations for a reasonable (but not mind-blowing) speedup.