Create a digital ocean box with packer
Add dockerignore

This serves two purposes:
- Increase build speed
- Prevent no space left on device errors
Improve IP address discovery
Improve docker boot process

- Tell docker interactive commands to remove themselves on complete
- Extract stopping a web container to a separate script for
  composability
- Stop on errors when bootstrapping
- Update vagrantfile to boot docker images
Update installation instructions
Add license