The Bloomington Center for the Performing Arts is staging a production of the award-winning Broadway musical, "Ragtime" on Thursday evening. Based on the popular novel by E.L. Doctorow, "Ragtime" blends fictional characters with historic figures and actual events. Tina Salamone, executive director of the BCPA, says "Ragtime" deals with subject matter that could have been ripped from today's headlines and presidential debates. Salamone calls "Ragtime" an "epic musical" because of its sweeping