Clean out _output directory from within docker.

This is necessary as some files might be owned by root.
Merge pull request #1737 from jbeda/clean-fix

Clean out _output directory from within docker.
Switch away from the static node info
Fix things for real this time.

Bash quoting is hard.
Merge pull request #1738 from jbeda/clean-fix

Fix things for real this time.
One more time.

Basic idea is to clean out the root owned stuff from with the docker build container.
Merge pull request #1739 from jbeda/clean-fix

One more time.
Fix up project hash on linux

Somehow this got dropped!
Merge pull request #1740 from jbeda/clean-fix

Fix up project hash on linux
Merge pull request #1736 from brendandburns/scheduler

Switch away from the static node info
Fix #1683
Merge pull request #1742 from dchen1107/termination

Set EmptyDir when VolumeSource is absent.