MB-100 run xdcr and rebalance with 10 buckets separately

Change-Id: I532e9b437bc1f286242e83befba63134851bd23c
Reviewed-on: http://review.couchbase.org/27773
Reviewed-by: Thuan Nguyen <soccon@gmail.com>
Tested-by: Thuan Nguyen <soccon@gmail.com>