ReactiveCocoa/ReactiveCocoa — pull request #741 by jspahrsummers (2013-08-07 05:14:08+00:00)
Title: Fix for RACBacktrace lifetime crash

With help from @js and #738, this fixes #726.

Instead of implementing `-[RACBacktrace dealloc]` and depending on weird ARC implementation details, it seemed easier to remove the destructors that we were passing to GCD. This should make the memory management more deterministic and straightforward.