Support adding more info for organizers

[mattstratton]

Organizers should be able to add twitter handles, employer, and email address (all optional)

See DC for an example

[bridgetkromhout]

I would prefer if we don't encourage email addresses. I don't want people emailing a specific organizer instead of the group list. That leads to dropped threads. (Especially if that organizer is me!)

[mattstratton]

Yup. To be fair, I wrote this issue at 2 AM. I agree that the use of email addresses should be dropped from this feature :)

[bridgetkromhout]

This is done, as far as I can tell.