* libnautilus-extensions/nautilus-label.c: (render_buffer_pixbuf),
	(label_recompute_line_geometries), (nautilus_label_new),
	(nautilus_label_set_text), (nautilus_label_set_font),
	(nautilus_label_set_font_size):
	Bug 2286 - sidebar text gets cut off.  The problem was that the
	text geometry was not being recomputed on changes that affected
	it, like font and font size.   Put the geometry code to a new
	function.

	Also fix a dumb overflow bug caused by abusing guint16.

	* libnautilus-extensions/nautilus-scalable-font.c:
	(nautilus_scalable_font_draw_text_lines):
	Was not setting the rectangle end point.