Feedback applied, new git branch

Hi all,
I've applied and pushed the commits approved at the last meeting.  I've also cherry-picked a few other commits which I took from MST's tree, and put them in my feedback branch on github:
https://github.com/rustyrussell/virtio-wip/tree/feedback
If you're working with feedback, I suggest basing your patch on that tree (though it may rebase if we modify feedback).  MST, could you please see if there are any changes you want which I missed?  Cheers, Rusty.