Origin uses single quotes in config files.
Merge pull request #10 from fotioslindiakos/origin_runtime_183_and_191

Fix get_usage to use oo_spawn
Add the systemd tc configuration on Origin.
Merge pull request #11 from rmillner/origin_runtime_183_and_191_working

Origin runtime 183 and 191 working
Added helper to find cgroups_paths
Some fixes to throttler
Fixed unit tests for throttler