layerhq/CocoaSPDY — pull request #2 by blakewatters (2014-06-16 22:03:04+00:00)
Title: Blake experimental introduce gcd

Switch to GCD instead of the runloop to make it easier to control the SPDY socket.

* Creates and manages a dedicated thread for the SPDY sockets
* Switch to dispatch sources instead of `NSTimer`
* Use a dedicated dispatch queue for guarding against concurrent mutation of the socket