* images/Makefile.am
	* images/gap-delete.png
	* images/gap-duplicate.png
	* images/gap-first.png
	* images/gap-last.png
	* images/gap-next.png
	* images/gap-prev.png: removed duplicates of GIMP and GTK+ stock
	icons.

	* images/gap-*.png: replaced with versions from Jimmac's web-site
	that have full transparency.