dotcloud/docker — pull request #5450 by tianon (2014-04-28 23:10:32+00:00)
Title: Update the "cgroup-lite" dep in our deb package from "Suggests" to "Recommends" and add "cgroupfs-mount" as another alternative

I tested to verify that if neither package is available (for example, on Debian Wheezy), apt still continues installing properly.