fix bug with config, use other way of specifying severity
fix bug with config, use other way of specifying severity

kaicataldo/babel,jridgewell/babel,kaicataldo/babel,babel/babel,kaicataldo/babel,hzoo/babel,babel/babel,babel/babel,hzoo/babel,babel/babel,jridgewell/babel,hzoo/babel,kaicataldo/babel,jridgewell/babel,jridgewell/babel,hzoo/babel