make sure that projector_port value for node 0 of cluster_run

...doesn't match the value for installation
this is inconvenient for testing mixed clusters on the single machine

Change-Id: I89b490fee0fecd071a23521a611dbaa6fe3256e1
Reviewed-on: http://review.couchbase.org/44119
Tested-by: Artem Stemkovski <artem@couchbase.com>
Reviewed-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>