Ignore separator menu items at the toplevel, they break the menubar.
Ignore separator menu items at the toplevel, they break the menubar.

sharoonthomas/gtk-mac-integration,rhult/ige-mac-integration,sharoonthomas/gtk-mac-integration,sharoonthomas/gtk-mac-integration,sharoonthomas/gtk-mac-integration,GNOME/gtk-mac-integration,sharoonthomas/gtk-mac-integration,rhult/ige-mac-integration,GNOME/gtk-mac-integration,jralls/gtk-mac-integration,GNOME/gtk-mac-integration,jralls/gtk-mac-integration,jralls/gtk-mac-integration,rhult/ige-mac-integration