Updates to documentation in guidelines_for_writing_style_templates.rst.
Removed two redundant digraphs used in 'french_initials()'.
Removed the 'month_abbrev' option, as it is no longer being used.
Updates to documentation in guidelines_for_writing_style_templates.rst.
Removed the 'get_author()' function definition from test5 in the testing suite as no longer useful.