* NEW: Link explicitly with the thread library.
* BUG: MediaPipeline: Prevent message callback routine possible recursion.
* NEW: MediaPipeline: Raise the Start event when a new stream is started.
* NEW: MediaPipeline: The Position and Duration properties are now computed during the message callback routine.
* NEW: MediaPipeline: Raise the AboutToFinish event two seconds before the stream end.
* NEW: MediaPlayer: NextURL is a new property that you must set to define the next stream that will be played without gap.
* NEW: MediaPlayer: Setting the URL property now automatically stops the player.
* NEW: MediaPlayer: The AboutToFinish event is now raised by MediaPipeline. This is not the GStreamer 'about-to-finish' signal anymore.


git-svn-id: svn://localhost/gambas/trunk@7933 867c0c6c-44f3-4631-809d-bfa615b0a4ec