CBD-1386:  change from 800x300 to 650x270 to better fit on wall display

Change-Id: I9988c350c494189c2e5524f2ed4a004d7cd6d70b
Reviewed-on: http://review.couchbase.org/39503
Reviewed-by: Philip Labee <philip@couchbase.com>
Tested-by: Philip Labee <philip@couchbase.com>