Fix "None" entries in relay list
A minor bug: attempting to sort the list by Bandwidth (desc) shows "None KB/s" at the top of the list, and "0 KB/s" at the bottom, so I don't see a way to show the highest bw nodes at the top. Where does "None" come from? Uptime also has both "None d" and "0 d."
I saw this problem, too, but now it's gone. I could imagine it has to do with the database schema being populated more. Any idea where the "None" values come from?