changing queue to return None if nothing on queue
changing queue to return None if nothing on queue

Impactstory/total-impact-core,Impactstory/total-impact-core,total-impact/total-impact-core,total-impact/total-impact-core,total-impact/total-impact-core,Impactstory/total-impact-core,total-impact/total-impact-core,Impactstory/total-impact-core