Socket Connection should send back from the calling queue
Socket Connection should send back from the calling queue

Summary: Currently the writeback occurs on the main thread. This is unecessary for clients as each handler does not rely on synchronization on the main thread. The only main thread interaction needs to occur when performing a relevant Simulator/Device call.

Reviewed By: marekcirkos

Differential Revision: D4938115

fbshipit-source-id: f627ec60b5c93405709557f75a4716024702df57

StevenUpForever/FBSimulatorControl,StevenUpForever/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl,StevenUpForever/FBSimulatorControl,facebook/FBSimulatorControl,StevenUpForever/FBSimulatorControl,facebook/FBSimulatorControl