changed method of calculating outstanding tests in C::R::RecordHandler::_get_outstanding_tests() to avoid using format_raw_lab_test_data() which triggered error in C::Screen::_load_initial_screen_data() which didn't load C::R::ResultHandler where format_raw_lab_test_data() lives - derive data directly from raw_lab_test_data now}
git-svn-id: https://jti.org.uk/svn/hmds_lims/trunk@1575 4177bd82-f056-0410-812d-caef170e3fa0