Scioto Downs Racino will soon have a way for gamblers to stick around awhile. The south-Columbus harness-racing facility's operator, Eldorado Resorts Inc., said Thursday it has entered a joint venture agreement to develop a new 118-room Hampton Inn & Suites hotel adjacent to its new Brew Brothers restaurant. Construction will begin this month with a targeted completion date of late 2016. Reno, Nevada-based Eldorado (NASDAQ:ERI) established the Columbus Southeast Hotel Group LLC, a joint venture...