need to calculate uNew from getB so that NeighborCellManager has a chance to update our atom's cell
need to calculate uNew from getB so that NeighborCellManager has a chance to update our atom's cell

etomica/etomica,ajschult/etomica,ajschult/etomica,ajschult/etomica,etomica/etomica,etomica/etomica