I finally got around to this, and hopefully haven't broken anything
in doing this - I did grep searches to snag any references to these
things, although I only looked in wesnoth/data/ We'll find out, soon
enough.
The following images have been moved from the images/misc/ directory
to the images/items/ directory.
trapdoor.png
chest.png
cage.png
ball.png
The following items have been moved and renamed:
item-healingpotion.png --> potion-red.png
item-darktome.png --> book5.png
item-flamesword.png --> flame-sword.png
item-staff.png --> staff.png
item-stormtrident.png --> storm-trident.png
item-sceptreoffire.png --> sceptre-of-fire.png
item-holywater.png --> holy-water.png