ENGLEWOOD, Colo. — Just 300 days after putting his name in the record books with the longest field goal ever, Matt Prater is history. At least in Denver. The Broncos cut ties Friday with the eighth-year kicker who's about to come off his four-game suspension. That means first-year kicker Brandon McManus has turned his temp job with the AFC champs into a full-time one. From the moment the Giants traded him to the Broncos in late August, McManus looked at Denver not as a stopover but as a destination. He said last month that his aim was to convince the Broncos he, and not Prater, was their man. Still, he was surprised he'd done just that. "I mean, Matt had a great year last...