Comment 343 for bug 1218322

@Dmitry: we already have a patch in g-s-d that makes the grabbing happen only for non-gnome-shell-sessions, we just need to tweak it so the new change only exclude unity session and let the other ones available for compatibility ... we can't support those fallback sessions for ever though so users running gnome-panel under !compiz might need to find another solution (e.g use ibus instead of gsd and the indicator)