make dunning basis dictionary as a class attribute
make dunning basis dictionary as a class attribute

langner/cclib,gaursagar/cclib,langner/cclib,berquist/cclib,Schamnad/cclib,ATenderholt/cclib,cclib/cclib,ATenderholt/cclib,cclib/cclib,gaursagar/cclib,berquist/cclib,berquist/cclib,langner/cclib,cclib/cclib,Schamnad/cclib