docker lxc driver fails

[Impact]

 * This bug breaks lxc engine support of docker.

 * There is an upstreamed fix issued to manage newer version of LXC, which enable lxc.autodev by default.

 * patch is lxc.autodev-support.patch that is a cherry-pick of https://github.com/docker/docker/commit/6089e679a2fb2494fd3e599a9eab9327e6a509fc

[Test Case]

 * To reproduce the bug:

  on a fresh vivid server:
    sudo apt-get install -y lxc docker.io
  edit /dev/default/docker:
    DOCKER_OPTS="-e lxc"

  restart docker-daemon service:
    sudo service docker start (see bug: LP: #1459916)

  ensure docker is running with the correct options with ps or docker:
    sudo ps -ef | grep docker
    root 20458 1 0 07:48 ? 00:00:19 /usr/bin/docker -d -H fd:// -e lxc
    sudo docker info | grep lxc:
    Execution Driver: lxc-1.1.2
    WARNING: No swap limit support

  pull a docker image (amd64):
    docker pull ubuntu:latest

 after download is successfull:
 it will fail to start like reported:

  ubuntu@vd2:~$ sudo docker run -it ubuntu:latest /bin/bash
  Unable to find image 'ubuntu:latest' locally
  Pulling repository ubuntu
  6d4946999d4f: Download complete
  428b411c28f0: Download complete
  435050075b3f: Download complete
  9fd3c8c9af32: Download complete
  Status: Image is up to date for ubuntu:latest
  lxc-start: lxc_start.c: main: 344 The container failed to start.
  lxc-start: lxc_start.c: main: 346 To get more details, run the container in foreground mode.
  lxc-start: lxc_start.c: main: 348 Additional information can be obtained by setting the --logfile and --logpriority options.
  FATA[0015] Error response from daemon: Cannot start container 5b7ee6181a49a1fa5c6ac47eab666ea05611f6f7f8b3610bfacb9a150c966501: Container is not running

( for bandwidth consideration, you might want to save the downloaded image for other testing,
    sudo docker images
    sudo docker save -o ubuntu_latest.tar ubuntu:latest
    bzip2 ubuntu_latest.tar,

    to reload it on an other sytem:
    sudo docker load -i ubuntu_latest.tar.bz2
    sudo run -it ubuntu:latest /bin/bash
)

* To verify the fix:

Now, restart a fresh vivid server,
  install the new proposed package
  sudo apt-get install -y lxc

  sudo service docker stop
  edit /etc/default/docker (DOCKER_OPTS="-e lxc")
  sudo service docker start

   ensure docker is running with the correct options with ps or docker:
    sudo ps -ef | grep docker
    root 20458 1 0 07:48 ? 00:00:19 /usr/bin/docker -d -H fd:// -e lxc

    sudo docker info | grep lxc:
    Execution Driver: lxc-1.1.2
    WARNING: No swap limit support

 sudo docker run -it ubuntu:latest /bin/bash
    Unable to find image 'ubuntu:latest' locally
    latest: Pulling from ubuntu
    428b411c28f0: Already exists
    435050075b3f: Already exists
    9fd3c8c9af32: Already exists
    6d4946999d4f: Already exists
    Digest: sha256:45e42b43f2ff4850dcf52960ee89c21cda79ec657302d36faaaa07d880215dd9
    Status: Image is up to date for ubuntu:latest
    root@e433f427c0f2:/# lsb_release -c
    Codename: trusty
    root@e433f427c0f2:/# exit

[Original Description]

Start docker daemon with "-e lxc" option.

pulll & run ubuntu image.

Expect to get a bash prompt, instead I get:

$ docker run -ti ubuntu bash
lxc-start: conf.c: mount_entry: 1711 No such file or directory - failed to mount '/dev/pts/5' on '/usr/lib/x86_64-linux-gnu/lxc//dev/console'
lxc-start: conf.c: lxc_setup: 3831 failed to setup the mount entries for '9b33b115f6ba2f4882f79745f1c8397b4f57ef3547fea30cfb01b3d03acd2f6c'
lxc-start: start.c: do_start: 699 failed to setup the container
lxc-start: sync.c: __sync_wait: 51 invalid sequence number 1. expected 2
lxc-start: start.c: __lxc_start: 1164 failed to spawn '9b33b115f6ba2f4882f79745f1c8397b4f57ef3547fea30cfb01b3d03acd2f6c'
lxc-start: lxc_start.c: main: 344 The container failed to start.
lxc-start: lxc_start.c: main: 348 Additional information can be obtained by setting the --logfile and --logpriority options.