* libnautilus-extensions/nautilus-icon-dnd.c:
	(nautilus_icon_container_find_drop_target),
	(nautilus_icon_container_get_drop_action):
	fixed bug 3215 and 3723, bad feedback during emblem dropping,
	by rejecting the drop if we're not over an icon.  Also, made it
	reject the drop for colors and backgrounds if we're not over
	the background.  I also fixed a memory leak in get_drop_action.