add second proposal of issue 7
add second proposal of issue 7

ericdouglas/node-range,fabiosantoscode/node-range,ericdouglas/node-range,xgbuils/node-range,ericdouglas/node-range,fabiosantoscode/node-range,xgbuils/node-range,fabiosantoscode/node-range,xgbuils/node-range