CBD-1246:  add 2.5.1 dashboard

Change-Id: I020d3a28b4213cf4d3a8379e8715fd9a51796231
Reviewed-on: http://review.couchbase.org/33459
Reviewed-by: Philip Labee <philip@couchbase.com>
Tested-by: Philip Labee <philip@couchbase.com>