- nsf.c: * improved source code documentation * added parameter option "args" in order to get eventually rid of hard-wired residual args. * improved a few error messages * fixed object parameters consisting only of plain parameters (previously, no parameters were returned in this case, e.g. for method parameters; but object parameter code depends on it) - extended and updated regression tests
-nsf.c: * switched parameter logic from default for nrargs from 0 to 1 * simplified logic to detect additional arguments in argument parser * improved error message for missing required argument