added sort-by referrer option to print run; replaced get_email_addresses() & get_contacts() in ScriptHelpers with class attributes secure_contacts & user_emails; tweaked print.css for print run outreach reports
brought some outreach css declarations into print.css for outreach reports in print run; reduced width of outreach chart - too wide for printing; text wrapped self->dump_html in test print pdf function - long lines affect formatting in wkhtmltopdf
