Imported using git-ubuntu import.
Changelog parent: 17d25fe43c40688f2d12a5c6d3604ca9a4869fa6
New changelog entries:
* ubuntu-touch: Make writable symlinks relative.
* ubuntu-touch: Add 03-etc-writable.chroot hook to move/symlink files in
/etc to /etc/writable/ that we need to update atomically. At the moment
these are timezone and localtime. (LP: #1227520)
