Putting this in a separate PR to keep things from getting messy.
Updated README
Removed script file to handle conversions
Rewrote tests and code to use the json file instead of the yaml one
Ran pulumi up to see enable/disable take effect
Removed code for creating the superuser in pulumi. That's now handled by the boostrap-superuser.sh script. This relied on the property that was set in the yaml file and we're not using that anymore anyway.
Putting this in a separate PR to keep things from getting messy.
Closes #154.