[Merge] lp:~rbalint/livecd-rootfs/livecd-rootfs-autopkgtest into lp:livecd-rootfs

[Balint Reczey]

OK, I have now decreased the number of targets to 3 and the builds clean up after themselves.
BTW those are the 3 which do pass with the stacked commits. :-)
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https://code.launchpad.net/~rbalint/livecd-rootfs/livecd-rootfs-autopkgtest/+merge/321459
Your team Ubuntu Core Development Team is requested to review the proposed merge of lp:~rbalint/livecd-rootfs/livecd-rootfs-autopkgtest into lp:livecd-rootfs.