Fixed up a bug where newlines weren't getting properly inserted into comments

This has been pissing me off for a while, and I finally realized it was because of how Hacker News embeds their HTML.  

Basically, what the structure is that at first there is a `<font>` tag wrapping a bunch of `<p>` tags, and then a set of `<p>` wrapping `<font>` tags.  Since the previous query just grabbed the direct children of the `.comment` element, this caused the latter type of comment to not have it's proper line breaks inserted because of how the `html` method in Jsoup works.  

Anyway, this should fix that problem by just grabbing all the `<font>` tags in the selector and then wrapping all but the first element in `<p>` tags, which is what the HN website basically does.