MB-19352: Show top keys on nodes without data servive
MB-19352: Show top keys on nodes without data servive

Change-Id: Iebba9200e5aeee00e4e213ddcb259cfbed48722c
Reviewed-on: http://review.couchbase.org/63483
Tested-by: Anders Nygren <4f8bff4ce020de40cfee5db6ca7fd51acc06e5c4@couchbase.com>
Reviewed-by: Aliaksey Artamonau <3c875bcfb3adf2a65b2ae7686ca921e6c9433147@gmail.com>

ceejatec/ns_server,ceejatec/ns_server,ceejatec/ns_server,membase/ns_server,membase/ns_server,membase/ns_server,ceejatec/ns_server,membase/ns_server,ceejatec/ns_server,ceejatec/ns_server,membase/ns_server,membase/ns_server