MB-8238 Modify image to go from 400 DPI -> 72 DPI

Change-Id: I57772b4dc372cc0cb04a36fa70c7ab01dfaf8d60
Reviewed-on: http://review.couchbase.org/26392
Reviewed-by: Ravi Mayuram <ravi@couchbase.com>
Tested-by: Ravi Mayuram <ravi@couchbase.com>