CBQE-0: update upr conf

add multi-bucket and crash scenario tests

Change-Id: Iaf242721a98858c8931e995c16358197fb2ed380
Reviewed-on: http://review.couchbase.org/40068
Reviewed-by: Tommie McAfee <tommie@couchbase.com>
Tested-by: Tommie McAfee <tommie@couchbase.com>