Added abstraction get_selection_index() (Mark Hammond).  Also reformatted some comment blocks to show off a cool feature I'm about to check in next.
Added abstraction get_selection_index() (Mark Hammond).  Also
reformatted some comment blocks to show off a cool feature I'm about
to check in next.

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