ReactiveCocoa/ReactiveCocoa — pull request #617 by jspahrsummers (2013-06-25 05:38:16+00:00)
Title: Rename -toProperty:onObject: to -setKeyPath:onObject:

Fixes #610.

I also deprecated `-rac_deriveProperty:from:` because it does nothing more than `-setKeyPath:onObject:` anyways.