OLMIS-1525: Number of periods to average can be only positive integer
OLMIS-1525: Number of periods to average can be only positive integer

OpenLMIS/openlmis-ui-components,OpenLMIS/openlmis-requisition-ui,OpenLMIS/openlmis-requisition-ui,OpenLMIS/openlmis-requisition-ui,OpenLMIS/openlmis-requisition-refUI,OpenLMIS/openlmis-requisition-refUI,OpenLMIS/openlmis-ui-components,OpenLMIS/openlmis-ui-components,OpenLMIS/openlmis-requisition-refUI