nbody: removed reference to sensitive db parameters by refering to env variables
nbody: removed reference to sensitive db parameters by refering to env variables

paperscape/paperscape-mapgen,paperscape/paperscape-mapgen,paperscape/paperscape-mapgen,paperscape/paperscape-backend,paperscape/paperscape-backend,paperscape/paperscape-mapgen,paperscape/paperscape-backend,paperscape/paperscape-backend