title: Custom user model in django does not allow setting password in admin
body: <p>I have created a custom user model which I am successfully using within my app.</p>
  
  <p>The problem is that within the Admin, on the user edit screen, I get a display of the present password hash, instead of the very useful interface for setting the password.</p>
  
  <p>I am using Django 1.5b1 on Python 2.7.</p>
  
  <p>How can I convince the Django admin to treat my user model the same way it treats the native User, for the sake of the admin user interface?</p>