CBQE-0: senf json to CB for reporting tool

Change-Id: I22f17401d5f90c47ca1e0c08656a2bfa87c6925d
Reviewed-on: http://review.couchbase.org/36271
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>