DDF-905 Changing format of configuration passwords to match web console.

Right now the web console passwords for configuration, if there is no password, will show a default password of 'unmodified'. The admin UI previously showed nothing. Now if there is no password, we'll also so the 'unmodified' password. These passwords are hidden of course.
Aight, added a block on the submit data that watches for it and remove it. Tests look good.