CBQE-1902: cbRecoverytests with CBRecoveryTask

Change-Id: I1cc6aceb1560b9b1beaa47f28e7453883a2cbcc8
Reviewed-on: http://review.couchbase.org/33243
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>
Tested-by: Andrei Baranouski <andrei.baranouski@gmail.com>