ReactiveCocoa/ReactiveCocoa — pull request #735 by jspahrsummers (2013-08-05 05:32:00+00:00)
Title: Use a CFSet instead of NSSet for RACActiveSignals

Also, pointer equality and pointer hashes instead of `-isEqual:` and `-hash`.

Fixes #734.

@indragiek Would you mind giving this branch a whirl?