Username:		Required. 150 characters or fewer. Letters, digits and @/./+/-/_ only.
Password:		<ul><li>Your password can&#39;t be too similar to your other personal information.</li><li>Your password must contain at least 8 characters.</li><li>Your password can&#39;t be a commonly used password.</li><li>Your password can&#39;t be entirely numeric.</li></ul>
Password confirmation:		Enter the same password as before, for verification.