Make me a page protected by a login.

* There is a page that asks for username/pw
* There is a page I can see only if I entered a valid username/pw.
* There is a page that lets me add new users
* I can only access the add-a-user page if I'm already logged in.
* All passwords are hashed/encrypted.
* Uses a database for usernames/pw
* The check_if_your_logged_in stuff is an include file(s).

Due Mon Feb 21.

Out of 7 points