draw text twice, once with the prelight state and clipped to the progress

Tue Nov 26 00:40:53 2002  Soeren Sandmann  <sandmann@daimi.au.dk>

	* gtk/gtkprogressbar.c (gtk_progress_bar_paint_text): draw text
	twice, once with the prelight state and clipped to the progress
	bar, and once with the normal state and clipped to the visible
	part of the trough. Also fix a spelling error pointed out by
	Matthias Clasen.