Got usernames back for rant previews.  The problem was that the 'owner'
attribute of a rant was switched from being the username of the owner to
the entire user
Made "my rants" visible again.  The problem was that before I got a list
of rant objects with the user data so I could access each rant's
information directly.  Now the user data only contains a list of rant
id's so I have to request the information for each rant separately.  As
a result of this, the filters are now broken as well, but that has to be
moved to the backend anyway so I'm ignoring it.