LOS ANGELES (TheWrap.com) - Apparently, Justin Bieber's manager is unfamiliar with the concept of being gracious in defeat. Scott "Scooter" Braun, the man who deserves the credit (or blame, depending on your view) for bringing the "Boyfriend" singer to prominence, had a Twitter meltdown Wednesday night, after his client was left out in the cold in this year's Grammy nominations. In a fairly lengthy (for the medium, anyway) Twitter screed, Braun opined that the powers that be at the Grammys "blew it" by not including Bieber among the potential trophy winners. ...