Starting development on .next

Change-Id: I7b76aaaf09d3d3f5f5b563570da4c677811e9325
Reviewed-on: http://review.couchbase.org/41442
Reviewed-by: Michael Nitschinger <michael.nitschinger@couchbase.com>
Tested-by: Michael Nitschinger <michael.nitschinger@couchbase.com>