Ignore aggregates with no functions in calculators_for_aggregates(); fix imports
Ignore aggregates with no functions in calculators_for_aggregates(); fix imports

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