bug 446848: Menu group visibility not considered in web client RAP 
https://bugs.eclipse.org/bugs/show_bug.cgi?id=446848

Change-Id: If1f41efb8f930ca39a9abd69f49e00b0811eb873
Reviewed-on: https://git.eclipse.org/r/34788
Tested-by: Hudson CI
Reviewed-by: Andreas Hoegger <Andreas.Hoegger@bsiag.com>