Update couchdb and geocouch revisions

Change-Id: If26517391a4659aae15ead000ef1e092d1f29793
Reviewed-on: http://review.couchbase.org/25549
Reviewed-by: Philip Labee <philip@couchbase.com>
Reviewed-by: Volker Mische <volker.mische@gmail.com>
Tested-by: Filipe David Borba Manana <fdmanana@gmail.com>