By Daniel Bates From being one of the most despised players on Pittsburgh’s roster, to a legendary Festivus sendoff, Mason Rudolph’s Steelers career has come full-circle. Rudolph finished 17-of-27 for 290 yards and two touchdowns in the 34-11 rout of the hated division rival Bengals; keeping his team’s playoff hopes alive with two weeks left. After having the game of his NFL life, Steelers fans serenaded the veteran QB with a cheerful rendition of “Rudolph the Red-Nosed Reindeer” as he walked off the field: Users were loving it on Twitter. “Lol, this is great,” said Melanie Friedlander. “‘They…