Added new alert checks: data_collection_time_alert(), time_to_complete_single_survey_alerts(), daily_data_collection_duration_alerts().
Added new alert checks: data_collection_time_alert(), time_to_complete_single_survey_alerts(), daily_data_collection_duration_alerts().

eHealthAfrica/nutsurv,johanneswilm/eha-nutsurv-django,eHealthAfrica/nutsurv,johanneswilm/eha-nutsurv-django,eHealthAfrica/nutsurv,johanneswilm/eha-nutsurv-django