toy-sundar.xml use membase/3.0

Change-Id: I05ffb9d6aeac2bfbc0308f91ff1dc5d86711718a
Reviewed-on: http://review.couchbase.org/39060
Reviewed-by: Sundararaman Sridharan <sundar@couchbase.com>
Tested-by: Sundararaman Sridharan <sundar@couchbase.com>