Let "Pay fines online" POST an authtoken
Let "Pay fines online" POST an authtoken

By instruction the "Pay fines online" link/button to POST an
authtoken to pay.cgi, we eliminate the need for the user to log in
again before submitting payment.

Signed-off-by: Jeff Godin <7b658ab2e5573260a7dc1c722b8df4a45dfe4eff@tadl.org>

tadl/Evergreen_templates_tadlskin