Fix bug 7587 (Copying text in Notes with menu item kills Notes
	[also Text viewer, etc]):

	* libnautilus/nautilus-clipboard.c: (do_with_fake_current_event):
	Function to set up a non-NULL event so the code in GtkEditable
	won't die.
	(cut_callback), (copy_callback), (paste_callback): Use the new
	function.