Failover services after kv.
Failover services after kv.

In case some service misbehaves and takes long time to failover, we
don't want that to delay kv failover.

Change-Id: I2512ddeed6a17e1915244dbc504e2f83ce258d60
Reviewed-on: http://review.couchbase.org/60151
Tested-by: Aliaksey Artamonau <3c875bcfb3adf2a65b2ae7686ca921e6c9433147@gmail.com>
Reviewed-by: Artem Stemkovski <15a0730a27c69f62ab86f2b6c639fca202166c02@couchbase.com>

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