MB-24493: Wait for further janitor runs if 'interrupted' ...
MB-24493: Wait for further janitor runs if 'interrupted' ...

... received from the orchestrator ensure_janitor_run call.

Change-Id: I03a9e8162c9455a6269a289d1cd1025256b61ce7
Reviewed-on: http://review.couchbase.org/78509
Tested-by: Dave Finlay <7b10a9ed9f70e64c30b07607a671ae61c33f14c8@couchbase.com>
Reviewed-by: Ajit Yagaty <670a5cadfa9668cb910cc315f6527868cd5ab42a@couchbase.com>

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