MB-6972:  use new V3 cert:  8A8E1353

pub   1024R/8A8E1353 2014-09-03 [expires: 2019-09-02]
uid                  Couchbase Server (v3 cert) <support@couchbase.com>
--------------------------------
sec   1024R/8A8E1353 2014-09-03 [expires: 2019-09-02]
uid                  Couchbase Server (v3 cert) <support@couchbase.com>

Change-Id: I583a787168335aaadf9d240b85db00b1ffd2aa43
Reviewed-on: http://review.couchbase.org/41176
Reviewed-by: Philip Labee <philip@couchbase.com>
Tested-by: Philip Labee <philip@couchbase.com>