PHRAS-3950 bin/maintenance clean never connected users #493

Job	Run time
build phraseanet-nginx / build	2m 44s
build phraseanet-db / build	22s
build phraseanet-fpm / build	3m 37s
build phraseanet-elasticsearch / build	27s
build phraseanet-setup / build	3m 32s
build phraseanet-worker / build	3m 38s
unit test	14m 48s
	29m 8s

Provide feedback