MB-8903: Update according to transfer protocol changes

The transfer protocol changed quite heavily. This commits
makes the corresponding changes.

Change-Id: I860b072c96258f3045a5fcc94b34eaa91f65f4f0
Reviewed-on: http://review.couchbase.org/29406
Reviewed-by: Volker Mische <volker.mische@gmail.com>
Tested-by: Volker Mische <volker.mische@gmail.com>