I agree that the empty frameboxes give a better visual effect and user experience, for example a user may directly scroll to page 100 without waiting for the first 99 pages being loaded.

Maybe we can add a new element in `manifest`, or just reuse the `$page` element for that. What concerns me is that now the page info has to be stored twice, one in the master HTML and one in the `.page` file, which is redundant and not elegant. Let's try to find a better one?

Also don't forget to add your self in `AUTHORS`