Update AUTHORS for 0.9

:exclamation: :exclamation: DO NOT MERGE :exclamation: :exclamation:

Still a little time before we ship 0.9, but I wanted to get this change lined up.

For the most part this is nothing to worry about, but I'd like to give people a chance to make sure they have the right name/email address in there.

@jhiswin, @Cartas - you don't have names on your commits except for you github usernames, would you like real names?

@mcsheffrey - you have multiple email addresses, so I changed the one we use. Is that the preferred one?

@rtfeldman - multiple emails for you too, I picked the one that seemed better, but let me know if you'd like that changed.