Import patches-unapplied version 2.422 to ubuntu/yakkety-proposed

Imported using git-ubuntu import.

Changelog parent: 74124543e3

New changelog entries:
  * live-build/ubuntu-touch/includes.chroot/etc/lightdm/
    lightdm.conf.d/90-phablet.conf:
    - Don't have Touch greeters show a guest session. Touch isn't ready
      for non-phablet users yet nor a multi-user greeter.

debian/changelog

@@ -1,3 +1,12 @@
+livecd-rootfs (2.422) yakkety; urgency=medium
+
+  * live-build/ubuntu-touch/includes.chroot/etc/lightdm/
+    lightdm.conf.d/90-phablet.conf:
+    - Don't have Touch greeters show a guest session. Touch isn't ready
+      for non-phablet users yet nor a multi-user greeter.
+
+ -- Michael Terry <mterry@ubuntu.com>  Wed, 10 Aug 2016 11:06:32 -0400
+
 livecd-rootfs (2.421) yakkety; urgency=medium
 
   [ Louis Zuckerman ]

live-build/ubuntu-touch/includes.chroot/etc/lightdm/lightdm.conf.d/90-phablet.conf

@@ -1,2 +1,3 @@
 [Seat:*]
 autologin-user=phablet
+greeter-allow-guest=false