Fix: /data/roles/ for lead and both

The data for "leads" and "both" at /data/roles/ was
flipped. In other words, if 3 leads and 5 both had
registered, we were showing 5 leads and 3 both as
having registered in our roles report.
Home: Remove survey chart, add circles back

Make the home page a little classier by removing
the survey chart, adding the rsvp circles back,
and using the photo from our promo cards as
the background.
Data: Add view: Who to email when reg is open

One of the survey questions from last year allowed
people to enter their email address, and we'd let
them know when registration is open.

Add a view to Couch to get this list.