MediaPlayerAVF now returns true/false on update based on weather there has been a new frame available within this update or not.
APPFrameworkCocoaView now sets the NSTimer that calls render one frame to be updated also during the event loop (that is for example, when the window is being dragged).
APT: restored "Please select file.." view on load (instead of the render view), and fixed the glitched on the render view that happened when the main window loaded the first video and it was not on focus