split history display into chronological order and by categories for request & lab-test data

added Base::is_lab_staff() method; access to lab test history now restricted to lab staff; C::Roles::DataMap::user_locations_map uses user_locations table instead of email_contacts table so that non-network users get a new diagnosis list

added ability to restrict non-network users to own records; added missing _debug_path() to controller methods

hilis3 conversion scripts for YHHN