Import patches-unapplied version 2.191 to ubuntu/saucy-proposed

Imported using git-ubuntu import.

Changelog parent: 17d25fe43c

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)

debian/changelog

@@ -1,3 +1,17 @@
+livecd-rootfs (2.191) saucy; urgency=low
+
+  * ubuntu-touch: Make writable symlinks relative.
+
+ -- Martin Pitt <martin.pitt@ubuntu.com>  Mon, 30 Sep 2013 13:59:59 +0200
+
+livecd-rootfs (2.190) saucy; urgency=low
+
+  * 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)
+
+ -- Martin Pitt <martin.pitt@ubuntu.com>  Mon, 30 Sep 2013 13:32:32 +0200
+
 livecd-rootfs (2.189) saucy; urgency=low
 
   * Explicitly add the ubuntu-desktop task to Edubuntu builds, so that any

live-build/ubuntu-touch/hooks/03-etc-writable.chroot

@@ -0,0 +1,14 @@
+#!/bin/sh
+set -e
+set -x
+
+mkdir -p /etc/writable
+
+for f in timezone localtime; do
+    if [ -e /etc/$f ]; then
+        echo "I: Moving /etc/$f to /etc/writable/"
+        mv /etc/$f /etc/writable/$f
+    fi
+    echo "I: Linking /etc/$f to /etc/writable/"
+    ln -s writable/$f /etc/$f
+done