[Merge] ~davidkrauser/livecd-rootfs/+git/livecd-rootfs:bootable-buildd into livecd-rootfs:ubuntu/master

[David Krauser]

Thank you cjwatson, good to hear.

saviq - I've added sudo to the image build.
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https://code.launchpad.net/~davidkrauser/livecd-rootfs/+git/livecd-rootfs/+merge/373916
Your team Ubuntu Core Development Team is requested to review the proposed merge of ~davidkrauser/livecd-rootfs/+git/livecd-rootfs:bootable-buildd into livecd-rootfs:ubuntu/master.