DRYs up cleanup code and prevents error that is raised when we attempt
to `bundle exec rake qa:vm:halt` when the bundle has not yet been installed.
Fixes#9803
This correctly CDs back and forth between dirs and tracks things
with variables to make it easier on the brain than relative paths like '..'
Fixes#9657
This commit includes:
* A base Dockerfile and script to push to a Docker repo
* A per-build Dockerfile (derived from the base)
* Updates to the test scripts to allow for more parallel builds
* Docker wrappers for the tests scripts
* Update for the integration test readme to manually run the tests
* Clean up the output of the Java tests
* Remove offline tag for tests (no longer needed that we don't use docker dependent services)
This commit does NOT include:
* Changes needed for the CI system to use Docker
Fixes#8223
