[CM] snd: x-zoom and :track-and-return cursor

[anders.vinjar at bek.no]

    B> I should use

    B> 	  if ((with_tracking_cursor(ss) != DONT_TRACK) &&

This one made my day!  The track-and-return seems to work now.  I'll try
to keep my eyes open for other cases where the same issue might pop up.

Also the :wait #f/#t works as expected now.

Thanks!

-anders