handle not_self_started from ns_cluster:do_change_address

Change-Id: If18bc9a3e4d2312c83466f07a2205f497c7cbcf3
Reviewed-on: http://review.couchbase.org/38496
Tested-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
Reviewed-by: Aliaksey Artamonau <aliaksiej.artamonau@gmail.com>