title: QtConcurrent::run emit signal
body: <p>I would like to emit a signal in Qt, from a function that I called with QtConcurrent::run</p>
  
  <p>Is this possible? It seems like my slot never gets called. All of the signals, slots, and functions are part of the same class object. I have tried making the connection in the Master thread, and in the slave thread. I dont really care if the signal and slot are in the same thread or not, I just want to get it to happen.</p>
  
  <p>Thanks</p>