accept underscore in dimension names for drilldown
accept underscore in dimension names for drilldown

cesarmarinhorj/cubes,she11c0de/cubes,pombredanne/cubes,she11c0de/cubes,pombredanne/cubes,jell0720/cubes,zejn/cubes,noyeitan/cubes,noyeitan/cubes,zejn/cubes,zejn/cubes,jell0720/cubes,ubreddy/cubes,ubreddy/cubes,cesarmarinhorj/cubes,she11c0de/cubes,pombredanne/cubes,noyeitan/cubes,ubreddy/cubes,jell0720/cubes,cesarmarinhorj/cubes