add question names for questions in nested groups, fix ordering of questions in groups in table display, fixes #1621
add question names for questions in nested groups, fix ordering of questions in groups in table display, fixes #1621

kobotoolbox/kpi,onaio/kpi,onaio/kpi,kobotoolbox/kpi,kobotoolbox/kpi,kobotoolbox/kpi,onaio/kpi,kobotoolbox/kpi,onaio/kpi