CBQE-2260: add different datasets to tuq

Change-Id: Id719e41700ea49a98582210070d00af77091816b
Reviewed-on: http://review.couchbase.org/37174
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>