* libnautilus-extensions/nautilus-icon-canvas-item.h:
	* libnautilus-extensions/nautilus-icon-canvas-item.c: (map_pixbuf),
	(draw_label_text_aa), (nautilus_icon_canvas_item_render),
	(nautilus_icon_canvas_item_event),
	(nautilus_icon_canvas_item_hit_test_stretch_handles),
	(nautilus_icon_canvas_item_get_max_text_width):
	Added comments and FIXMEs and fixed formatting. Removed unused
	functions and changed all the functions to return values in world
	coordinates rather than doing some in canvas coordinates.

	* libnautilus-extensions/nautilus-icon-container.c:
	(nautilus_gtk_adjustment_set_value): Added a function that clamps
	to the scroll bar range. The original in Gtk allows scrolling past
	the end of where the scroll bar does.
	(scroll): Call the new function. This fixes the "auto-scroll past
	edge of the screen" problem.
	(reveal_icon): Use the new function even though it shouldn't matter
	here.
	(set_scroll_region): Add some padding on the left and right and
	fix some of the...