Don't store the admin password in cleartext
The Greeter currently stores the user-chosen admin password unhashed in
password is then set via
IMO, passwords should never be stored in cleartext. Instead, we should
store them hashed and use
chpasswd -e to set them.
This will also make it easier to persist the password, as part of persisting the Greeter options, which I plan to work on.
Feature Branch: bugfix/17135-store-admin-pw-hashed