CBQE-0:possibility to track known bugs in failed tests

Change-Id: Ib407c9b220847a0b0efc2a29208f669f2e812030
Reviewed-on: http://review.couchbase.org/25853
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>