Sharing pane works, everything is great for guests. Logged in
users are on the way, since right now Share Outfit re-saves
anonymously rather than showing sharing data for the existing
outfit.
Due to a silly slip-up involving Javascript object literal syntax, we were
sending {csrf_param: "token"} instead of {authenticity_token: "token"} with
wardrobe AJAX requests. This would cause users to be auto-logged-out for
failing to provide a proper token. Oops.
