CBQE-2297: minor fixes to upr rebalance tests

speed up of verification
node stop/start fixes for binary builds

Change-Id: I5031d6a0fd856e5647f28013db1832240a89681d
Reviewed-on: http://review.couchbase.org/39093
Reviewed-by: Tommie McAfee <tommie@couchbase.com>
Tested-by: Tommie McAfee <tommie@couchbase.com>