June 25, 2012 By Stephanie Adrian Kristin Chenoweth: just a girl from Broken Arrow, Oklahoma. Singer Kristin Chenoweth’s Friday-night Atlanta debut at the Cobb Energy Performing Arts Centre was touch and go, due to a tracheal infection that forced her to cancel shows in Chicago, Minneapolis and Nashville. Fans finally got word Thursday via her Twitter account that she was packed and coming. And show up she did. Like the Broadway pro she is, Chenoweth held back nothing vocally. A strategically placed bottle of hand sanitizer atop the Steinway behind her was a reminder of her recent sick leave, as…