https://bugzilla.gnome.org/show_bug.cgi?id=612662
Previously we explicitly didn't do this, although I can't figure out why now... definitely seems to work more smoothly this way. https://bugzilla.gnome.org/show_bug.cgi?id=658591
Rather than having Main.keyboard.actor always exist, and creating and destroying only its contents, create and destroy that actor as well. https://bugzilla.gnome.org/show_bug.cgi?id=657986
https://bugzilla.gnome.org/show_bug.cgi?id=658065