ReactiveCocoa/ReactiveCocoa — pull request #453 by jspahrsummers (2013-04-30 06:47:11+00:00)
Title: Use unsafe_unretained references for RACBind targets

AppKit has several classes that don't support weak references, which sucks for `RACBind()`. This uses `unsafe_unretained` for its targets instead, making sure to set them to nil upon deallocation.

@Coneko