Greatly improve export-to-S3 performance by
Greatly improve export-to-S3 performance by

increasing upload chunk size from 8K to 5M

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