<oo-accept-node> Bug 964089 - Fix check_cgroup_procs

https://bugzilla.redhat.com/show_bug.cgi?id=964089

Check for UIDs that are between GEAR_MIN_UID and GEAR_MAX_UID

Support for mounting cgroup controllers either under /cgroup/all or
/cgroup/<controller>
Merge pull request #2553 from detiber/bz964089

Merged by openshift-bot