* simulator common, many members now private (info -> read only)
* renamed printDirectPlayError -> logDirectPlayError
* (re)added ASSERT for FS9
* removed parent from listener (with parent no moveToThread)
* removed QFuture / QConcurrent as we have agreed to do
* unloading a plugin no longer automatically restarts all listeners
this allows a user to set one particualar simulator in the GUI and ony wait for that
* stop listener from own signal
* The FS9 host is started in the Listener
* When FS9 starts up, it is called via the lobby to join the multiplayer
* Some minor changes in CContextSimulator