To change your email go to the following screen:
1. In your settings screen find the email field and click the "Change email" link.
2. Enter your new email address twice to confirm and also your current password.
3. A dialog will appear to let you know that you will be logged out and you must log in again with your new email.
4. Click YES, LOG ME OUT and you will be taken to the standard login screen where you may log in with your new email address.