[Merge] ~utkarsh/livecd-rootfs/+git/livecd-rootfs:ubuntu-cloud-minimal into livecd-rootfs:ubuntu/master

[Michael Hudson-Doyle]

> Also, is there a difference b/w add_task install $seed and add_package install $ubuntu-seed?

A metapackage cannot depend on snaps.
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https://code.launchpad.net/~utkarsh/livecd-rootfs/+git/livecd-rootfs/+merge/447166
Your team Ubuntu Core Development Team is requested to review the proposed merge of ~utkarsh/livecd-rootfs/+git/livecd-rootfs:ubuntu-cloud-minimal into livecd-rootfs:ubuntu/master.