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.
Merge pull request #49 from jerenhicks/feature/DDF-905_mimic_console_password_format

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