Code refactoring (2) (es5 -> es2015)

dev/Screen/User/Login.jsx

@@ -0,0 +1,19 @@
+
+import {AbstractScreen} from 'Knoin/AbstractScreen';
+import App from 'App/User';
+
+class LoginUserScreen extends AbstractScreen
+{
+	constructor()
+	{
+		super('login', [
+			require('View/User/Login')
+		]);
+	}
+
+	onShow() {
+		App.setWindowTitle('');
+	}
+}
+
+export {LoginUserScreen, LoginUserScreen as default};