added mgmt and capi services to nodesExt

Change-Id: I56c8eaaf3605fb1d60c96ff4c5e034606173dd7d
Reviewed-on: http://review.couchbase.org/37509
Tested-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
Reviewed-by: Aliaksey Artamonau <aliaksiej.artamonau@gmail.com>