LOS ANGELES (Reuters) - Lionel Richie staved off stiff competition to hold onto the top spot of the Billboard 200 album chart on Wednesday, beating out new entries from Jason Mraz and Train. "Tuskegee," the country music-inspired 10th studio album from the 62-year-old soul singer, made the rare climb to No. 1 last week, three weeks after the album's release and continued to hold strong this week with 114,000 copies sold. Grammy-winning pop singer Jason Mraz debuted at No. ...