Fix architecture-determining function
Update test_upload.py script with up-to-date URL
Don't delete EC2 utility instance volume on termination.
This exception won't have a value attribute.
Fleshed out the final process of the AMI upload.

- Take a snapshot of the volume and register it as an image.

- Clean up node, volume, and snapshot properly.

- Currently does not properly select the volume.

- Minor changes (name changes, typofixes, etc)
Add a config variable for a test command to run for EC2.
Deploy a test node with a test script. Also move some stuff around.
Merge branch 'feature/make-and-test-ami' into develop