Take nodes from config in extra_default_settings_for_45.
Take nodes from config in extra_default_settings_for_45.

To avoid any potential inconsistencies.

Change-Id: Ib233b4e2df5e7799e34e7e134324fbebc17f3a17
Reviewed-on: http://review.couchbase.org/61614
Tested-by: Aliaksey Artamonau <3c875bcfb3adf2a65b2ae7686ca921e6c9433147@gmail.com>
Reviewed-by: Artem Stemkovski <15a0730a27c69f62ab86f2b6c639fca202166c02@couchbase.com>

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