MB-20213: Require a username and password when backing up and restoring
MB-20213: Require a username and password when backing up and restoring

Change-Id: I4320aceba65954b47148798268d1f57b19859dc0
Reviewed-on: http://review.couchbase.org/77345
Reviewed-by: Eben Haber <d1abc94d70526bfcf3e4b0ce727cb9a6fbb52a3a@couchbase.com>
Tested-by: Michael Wiederhold <a17fed27eaa842282862ff7c1b9c8395a26ac320@couchbase.com>

couchbase/couchbase-cli,couchbase/couchbase-cli