unbreak default build by not starting projector by default

Because projector is not built we shouldn't attempt to spawn it on
every kv node.

Change-Id: I6b183535ebd38b2a67c594d6d3e89af73e0e89bf
Reviewed-on: http://review.couchbase.org/43568
Reviewed-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
Tested-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>