CBQE-2116: upr-rebalance test conf

Some basic rebalance tests to verify rebalance with
when upr replication is enabled.

Change-Id: I51e49db26b93e0dd53833a174d1af05c72d6fd96
Reviewed-on: http://review.couchbase.org/34430
Reviewed-by: Tommie McAfee <tommie@couchbase.com>
Tested-by: Tommie McAfee <tommie@couchbase.com>