added drilldown_on key -> group_key to finalized cells in aggregator
added drilldown_on key -> group_key to finalized cells in aggregator

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