Field Settings: File Directory doesn't render tokens

Thanks to #1201924: Widget does not respect settings in file_field_instance_settings_form (uri scheme, directory, extensions, file size), file and image fields now respect the file directory setting.

However, when tokens are used in the file directory, it just creates the directory as the token, and not the rendered value.

For example, my files are now stored in a directory called [current-user/name]

Basically, tokens aren't being rendered.