[Merge] ~dbungert/livecd-rootfs:ubuntu-mini-iso into livecd-rootfs:ubuntu/master

[Michael Hudson-Doyle]

> > 2) debian-cd actually doesn't use the xorriso command from cd-boot-images-
> amd64, so we'd have to make sure that the parameters are actually correct.
> 
> The parameters it uses are plausible at least.

And if they are wrong we should fix them!
-- 
https://code.launchpad.net/~dbungert/livecd-rootfs/+git/livecd-rootfs/+merge/436420
Your team Ubuntu Core Development Team is subscribed to branch livecd-rootfs:ubuntu/master.