Calabasas' soon-to-be-newest resident, Britney Spears, is now an Aunt. Jamie Lynn popped out her baby girl, Maddie Briann, this morning. Lynn, the millennial face of teen pregnancy, went into a Mississippi hospital at 4:30 a.m. and gave birth a few hours later. She had announced her pregnancy back in December around the time that Juno was making headlines, sending parents and Nickelodeon lovers into a tailspin and setting off a string of hand-wringing (rightfully so)......