403 Error when requesting a new password while already authenticated

With the introduction of auth.eclipse.org, we should have a way to reset the password while the user is already authenticated on accounts.eclipse.org but not auth.eclipse.org.

@cguindon proposed creating a new Drupal page to detect whether the user is already logged in. If the user is logged in, it will redirect the user to their edit profile page. Otherwise, /user/password.