Compiler error when targeting iOS 6

[timrossinfo]

Hi, I am getting a compiler error in the most recent code from master. It appears that dispatch_release (used by the dealloc method in uiss.m) is not allowed if the project is targeting iOS 6.0 and above.

I found this information which might be relevant:
http://stackoverflow.com/questions/8618632/does-arc-support-dispatch-queues

In particular: "...if your deployment target is at least iOS 6.0 or Mac OS X 10.8, and you have ARC enabled, ARC will retain and release your queue, and the compiler will flag any attempt to use dispatch_retain or dispatch_release as an error."

Hope that helps!

Tim