Remove all uses of #chdir in threaded code
fix bz996952 - use gear_id with ssh key, rather than component_id
Fixing the run_jobs logic for op groups being rolled back
Merge pull request #4084 from rajatchopra/master

Merged by openshift-bot
Merge pull request #4097 from abhgupta/abhgupta-scheduler

Merged by openshift-bot
update for 36 upgrade
Merge pull request #4105 from danmcp/master

Merged by openshift-bot
Bug 1027058: Gracefully handle upgrading zero gears on a node
Merge pull request #4101 from ironcladlou/dev/chdir

Merged by openshift-bot
Merge pull request #4108 from ironcladlou/bz/1027058

Merged by openshift-bot