Enable roles for open source

[BillHodghead]

From @bhcrosslake on June 25, 2017 23:14

Define OSS roles Ex: https://github.com/npm/npm/blob/latest/CONTRIBUTING.md

• Replace keys in AWS images

  • Remove key files from GitHub
  • Redeploy with new keys and passwords
  • Add new passwords and keys to Circle CI

• Change password for AWS

Copied from original issue: LevelOneProject/Docs#544