do_cmd_refbimodindex(), do_cmd_refstmodindex():  New functions, handle the 	reference form of \bimodindex{} and \stmodindex{}.
do_cmd_refbimodindex(), do_cmd_refstmodindex():  New functions, handle the
	reference form of \bimodindex{} and \stmodindex{}.

my_parword_index_helper():  Fixed to include proper anchor in result text.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator