2015-11-12  David King  <amigadave@amigadave.com>

	Update NEWS for 3.18.1 release

2015-10-19  David King  <amigadave@amigadave.com>

	Avoid a crash when showing the preferences

	Show an error message when the preferences desktop file is not found,
	such as if gnome-control-center is not installed.

	https://bugzilla.gnome.org/show_bug.cgi?id=756654