[Merge] ~cpete/livecd-rootfs:kdump-tools-installed-by-default into livecd-rootfs:ubuntu/master

[Dan Bungert]

Review: Approve

Steve's feedback is addressed in https://code.launchpad.net/~cpete/ubuntu-seeds/+git/ubuntu/+merge/473312

Merged and uploaded
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https://code.launchpad.net/~cpete/livecd-rootfs/+git/livecd-rootfs/+merge/473230
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