David has posted a great patch & design document on Review Board: RB: https://reviews.apache.org/r/54883/ Design Doc: https://docs.google.com/document/d/1QVSEfeoCyt2D6cCmTCxy8-epufcuzIfnqRUkyT1betY/edit?usp=sharing
I am merely reposting his work here so that it won’t be missed by casual readers of the mailing list. Best regards, Stephan