added celery to ecorest Dockerfile
added celery to ecorest Dockerfile

quanted/ubertool_ecorest,puruckertom/ubertool_ecorest,quanted/ubertool_ecorest,puruckertom/ubertool_ecorest,puruckertom/ubertool_ecorest,quanted/ubertool_ecorest,quanted/ubertool_ecorest,puruckertom/ubertool_ecorest