typelift/swiftz — pull request #122 by sharplet (2014-11-08 00:34:28+00:00)
Title: Replace most Foundation imports with Darwin or nothing

Importing `Foundation` is only really necessary when using `NSArray`, `NSDictionary`, etc.; for GCD you can import `Dispatch`; for pthreads you can import `Darwin`; otherwise, no import is necessary.