PRs and reviews

[Jim Klucar]

I'd like to discuss how we do PRs and code reviews. Right now we are using
github most likely because that's how we did it before Apache. Now the code
lives in the Apache hosted repo and we have Review Board available to us.
My assumption is that we are individually more familiar with one way or the
other and we could argue their virtues here, but I have another suggestion.
Why not after this release goes out, we switch off github and use review
board for the next release and then discuss?