CBQE-0: monitorRebalance with stop_if_loop=True by default

Change-Id: I6f5a5c6cad498c4787596b06a8329642bd2d2bae
Reviewed-on: http://review.couchbase.org/35068
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>
Tested-by: Andrei Baranouski <andrei.baranouski@gmail.com>