FlexMonkey/Swarm-Chemistry-GCD — pull request #1 by josephlord (2014-08-28 18:52:48+00:00)
Title: iOS 7 support

Hi Simon,
I dropped in my backwards compatible version of Async and enabled building for iOS 7.

See http://github.com/josephlord/async.legacy
It was useful to try dropping my version and see that it still worked.