The new things are:

	* PRINTPARA now uses pixel positioning when printing to displaystreams.
	* Bitmaps are now incorporated as a printout form.  This new form
	  is .BM <before> <descent> <bitmap> which is implemented by the
	  function PRINTBM.  <before> is the amount to scroll up the
	  displaystream before bitmap is displayed.  NIL means don't
	  scroll, T means scroll the amount the bitmap extends above the
	  top of the current line, a number means scroll that amount above
	  the top of the current line. <descent> is how far below the current
	  line to BITBLT the bitmap.  The window is scrolled up if there is
	  not enough room.  The following line printed will be printed so
	  it doesn't overlap the bitmap.  NIL means don't descend, a number
	  means descend that amount.  <bitmap> is the bitmap to print.

	  The displaystream is left at the same Y position it was before the
	  BITBLT and advanced the width of the bitmap.  If the bitmap is
	  too wide to fit a new line is generated.