This makes it easier to add new features
- Clearer variable names
- Split up large functions into smaller ones for each action
- Help make it easier to add new features
keygen.py now recommends that you run it as the user you want to have
ownership of secret.key and uploadkeys (such as www-data for nginx).
Then, if uploadkeys or secret.key don't exist, they will be created with
the correct ownership.
