Jenkins updates (#146)
Jenkins updates (#146)

* Better branch detection for PRs
* Fix error in _propagate_changes
* Archive a file that has a list of stages run for post run processing
* Add the real branch for PRs when sending notifications to slack
* TRID-2988
* TRID-2991
* TRID-2992



NetApp/trident,NetApp/trident,NetApp/trident