Import patches-unapplied version 2.310 to ubuntu/wily-proposed

Imported using git-ubuntu import.

Changelog parent: 5d6ee8ad5b

New changelog entries:
  * Don't add a docker group to desktop next

debian/changelog

@@ -1,3 +1,9 @@
+livecd-rootfs (2.310) wily; urgency=medium
+
+  * Don't add a docker group to desktop next
+
+ -- Sebastien Bacher <seb128@ubuntu.com>  Mon, 08 Jun 2015 09:49:23 +0200
+
 livecd-rootfs (2.309) wily; urgency=medium
 
   * Updated user/groups config for the desktop-next

live-build/ubuntu-desktop-next/hooks/02-add_user_to_groups.chroot

@@ -2,7 +2,7 @@
 
 USER=ubuntu
 
-DEFGROUPS="docker,sudo"
+DEFGROUPS="sudo"
 
 echo "I: add $USER to ($DEFGROUPS) group(s)"
 usermod -a -G ${DEFGROUPS} ${USER}