Analyse the game at the end of turn.

https://bugzilla.gnome.org/show_bug.cgi?id=737410
Remove view.redraw ().

https://bugzilla.gnome.org/show_bug.cgi?id=737410
AI: Don't manage a pass as a move.

https://bugzilla.gnome.org/show_bug.cgi?id=737410
Don't make unnecessary moves.

https://bugzilla.gnome.org/show_bug.cgi?id=737410
Do the first iteration in a different function.

https://bugzilla.gnome.org/show_bug.cgi?id=737410
Don't use six lines for a corner case.

https://bugzilla.gnome.org/show_bug.cgi?id=737410