Issue 3742 - Always show the Chapter title as a link.

Fixes https://code.google.com/p/otwarchive/issues/detail?id=3742

I'm removing the conditional in the template, so the chapter title *always* displays as a link, when viewing the entire work or just that chapter. If we want to hide the link when just viewing a single chapter (since it doesn't go anywhere), we should probably do that in the front-end (via JavaScript or even CSS to make it stand out less), rather than trying to refresh the template from the cache when the user changes view mode. :)