By Brandy McDonnellAn abbreviated version of this story appears in Thursday's The Oklahoman.Festive fall: Plaza District to host three festivals in a week's timeWith three festivals planned in one week, fall is undoubtedly the most festive time of the year in the Plaza District.Both the long-running Plaza District Festival and the growing Plaza Walls Mural Expo will bring an impressive array of visual and performing artists to the 1700 block of NW 16 Street on the last Saturday of September.