WIP: add option to disable versioning in EOS upon PUT request #30

Job	Run time
docker (docker/Dockerfile.revad) / docker	1m 52s
docker (docker/Dockerfile.revad-eos) / docker	43s
docker (docker/Dockerfile.reva) / docker	40s
docker (docker/Dockerfile.revad-ceph) / docker	2m 17s
docker (docker/Dockerfile.revad-eos) / docker	39s
	6m 11s

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