start work on dp2

Change-Id: Ib049f03aba417f2f836f40361ea8bf833358da45
Reviewed-on: http://review.couchbase.org/37504
Reviewed-by: Michael Nitschinger <michael.nitschinger@couchbase.com>
Tested-by: Michael Nitschinger <michael.nitschinger@couchbase.com>