Login, Register, Account, Logout and the User menu

The login page is /user/login and has a custom menu item assigned to the User menu.  This menu item should be available at all times while not logged in.

The registration page is /user/register and has a custom menu item assigned to the User menu.  This menu item should be available at all times while not logged in.

The account page is /user/ and Drupal places a menu item for it in the User menu.  This menu item should be available at all times while logged in.

The logout page is /user/logout and Drupal places a menu item for it in the User menu.  This menu item should be available at all times while logged in.