Imported using git-ubuntu import.
Changelog parent: 4feb62da463427ed51fed8562a1597ea25e4e8cd
New changelog entries:
[ Steve Langasek ]
* generate all tar files with --xattrs. LP: #1302192.
[ Daniel Watkins ]
* ubuntu-cpc: Reintroduce the -root.tar.xz artifact (LP: #1585233).
* ubuntu-cpc: Generate the root image contents once, and use it for both the
-root.tar.xz and the .squashfs.
* ubuntu-cpc: Generate -root.tar.xz with --xattrs.
