add new permission

[nimabk82]

I add the user_location permission in FBLogin but still cannot get the new permission.

<FBLogin style={{ marginBottom: 10, }}
          permissions={["email","user_friends","user_location"]}
          onLogin={function(data){
            console.log("Logged in!");
            console.log(data);
            _this.setState({ user : data.credentials });
          }}
/>