serviced should depend on ubuntu package cgroups-lite

[daniel-garcia]

serviced requires the cgroups-lite package to be installed so that the correct lxc-groups are created at boot time.

control-center/serviced@395292e

[wplu]

I'm not sure cgroup-lite fixes the issue with the lxc dirs... But you are right that zendev should prereq the cgroup-lite package

# plu@plu-ubuntu: dpkg --list |grep cgroup
ii  cgroup-lite                               1.8                                           all          Light-weight package to set up cgroups at system boot
~/src/europa
# plu@plu-ubuntu: ls -l /sys/fs/cgroup/memory/lxc
ls: cannot access /sys/fs/cgroup/memory/lxc: No such file or directory
~/src/europa
# plu@plu-ubuntu: sudo apt-get install cgroup-lite
Reading package lists... Done
Building dependency tree       
Reading state information... Done
cgroup-lite is already the newest version.