Add asterisks to required form fields

Make it more obvious these fields are required.
Include user's email in request status page

Hopefully this will make it obvious if they entered the wrong email.
Add ability for admins to add notes about request

We want ticket coordinators to be able to leave comments on any special
circumstances/information relating to a request.
Add auth tokens to request confirmation email

This will save users from having to enter their email/password when
purchasing tickets (which would be annoying).

There are a number of limitations with this (e.g. generating a new auth
token overwrites any previously existing ones) but for the flow that
we're currently supporting it's adequate. Would love to implement a
ctoken approach if time permitted.