Kleiner Perkins Caufield & Byers Web video advertising is exploding. But that doesn't mean people like all those pre-roll ads. In fact, the only thing people dislike more than pre-rolls are those universally reviled mobile pop-up ads. That's according to theannual Internet Trends slidedeck released by Kleiner Perkins Caufield & Byers partner Mary Meeker at the Code Conference on Wednesday. To