I've been tracking this down and figured it out. The Auth constructor
in 1.3 takes fewer parameters and the username & password are no longer
accepted by Auth.
$a->username = $user;
$a->password = $pass;
$a->status = AUTH_LOGIN_OK;
in userslib.php:validate_user_auth() and was able to login correctly. I
won't have a chance to commit this tonight, but will try tomorrow evening.
The anonymous bind problem is back. I think I know that solution as
well, but need more testing.