Allow resending the verification e-mail if token expired.

[jkenlooper]

Players that try to verify their e-mail address after the verification token has expired need a way to resend it. The current solution is to have them set their e-mail to an empty string which should delete the e-mail address from the account. Then they should be able to add their e-mail address back in. This workaround is untested, and is not an ideal solution.
Maybe it could show a different button label when the token has expired. Button label could be 'resend' or something.