Add test directory to lint script
Add test directory to lint script

saenglert/react-day-picker,gpbl/react-day-picker,chaosmaple/react-day-picker,Fnatte/react-day-picker,gpbl/react-day-picker,gpbl/react-day-picker,orokos/react-day-picker,chaosmaple/react-day-picker,Fnatte/react-day-picker,orokos/react-day-picker