Cheng Xin | Getty Images News | Getty ImagesDraftKings is acquiring predictions platform Railbird as it prepares to launch a mobile platform in the coming months to be called DraftKings Predictions.Railbird is licensed by the Commodity Futures Trading Commission to offer an event contracts exchange. DraftKings targeted the company for its team and proprietary technology. "We are excited about the additional opportunity that prediction markets could represent for our business," DraftKings CEO Jas...