Re-add new attributes from #227 which got removed during rebasing
Re-add new attributes from #227 which got removed during rebasing

ATenderholt/cclib,cclib/cclib,langner/cclib,cclib/cclib,langner/cclib,berquist/cclib,ATenderholt/cclib,berquist/cclib,langner/cclib,cclib/cclib,berquist/cclib