#2 Patch to show stars in password field

[Matthew T. Jachimstal]

The font defined in the current source for blanking the
password fields uses open boxes. This patch, along with
starFont.txt, changes these to an asterisk. The current
main password screen already has a checkbox to show or
hide the password as it is entered.

This patch also adds the same checkbox to the "Change
Password" screen. The status of the checkbox is already
being stored in the application preferences. This patch
uses that saved state when the "Change Password" screen
is displayed and resaves the state of the checkbox if
it is changed.

[Matthew T. Jachimstal]

Patch to show stars on password entry screens