* Remove .first-post class from all items retrieved through infinite Ajax. You never know... (topic.js)
* Also, probably useless, but in case an infinite page takes time to show, we might want to show an Ajax loader. I'm not sure it'll work though, with all of the DOM manipulations going around... But at least it doesn't break anything, so might as well do it. (topic.js)
! Fixed infinite pages showing a duplicate of the original post in blog mode. (Display.php)

! Fixed infinite pages showing full userbox data in blog mode. (Display.template.php)

* Also documented one of the lines a bit more... wetem::replace() can be complicated to grasp here. (Display.php)

@ These fixes took me hours to implement... I'm getting rusty! But this is as short and simple as I can do for them.