Freeciv

Pressing "Turn Done" button first grabs focus to it, and then lose it completely as the button goes insensitive. When "Silent when not in focus" option is active, this pauses the music until something else within freeciv window is clicked to return the focus. I think it's also the root cause for some problems on consecutive clicks on "Turn Done" button.

This bug was the reason we couldn't enable "Silent when not in focus" by default in freeciv-3.2. I hope we can change that for freeciv-3.3.