The styledText and htmlText of a field now include tab
alignment information. The htmlText uses a new tabalign
attribute with a list of alignments, e.g.
<p tabalign='left,center,right'>left&09;middle&09;right&09;</p>
The styledText stores tab alignment in a "tabalign" key in each paragraph's "style" array, e.g.
get tStyledText[1]["style"]["tabalign"]