bugfix - previous requests in screen, report, etc skipped any non-reported requests - fixed by making authorised_reports table a left join; fixed inability to delete trial & trial number in request edit - loads frozen data trial.id in absence of form input trial.id; 3411 tests pass

minor template mods

bugfixes - previous_request.tt and _get_previous_requests() required access to patient table data

added date and specimen type to 'other records' list; defined default sort order DESC in col header search to match main form search

sync'ed templates afetr recent change