added patient summary header to all request-related pages (phonelog, errorlog, email, data edits, unlock record, etc); option to switch off gross description field
patched comment history to return app warning if no entry found in request_report_history table - was generating fatal error; fixed all syntax errors in _get_request_status_query_args
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
