Add template and throttler support to cgroups
Separate out libcgroup based functionality and add configurable templates.
Reworked throttler code to work with new cgroups
Cgroup module unit tests and bug fixes.
Make throttling values configurable, and fixes.
Origin uses single quotes in config files.
Use oo_spawn to run grep in throttler
Add the systemd tc configuration on Origin.
Added helper to find cgroups_paths and throttler fixes.
Did not properly deal with the freeze and thaw templates.
Merge pull request #3192 from rmillner/origin_runtime_183_and_191_merge

Merged by openshift-bot