add missing files.

src/notifications.js

@@ -0,0 +1,20 @@
+(function () {
+
+	var noticationContainerEL = $('#js-alerts-container');
+
+	function addNotification(msg) {
+		var n = document.createElement('div');
+		// div.textContent = msg;
+		// noticationContainerEL.appendChild(n);
+		noticationContainerEL.textContent = msg;
+		noticationContainerEL.classList.add('is-active');
+
+		setTimeout(function () {
+			noticationContainerEL.classList.remove('is-active');
+		}, 2000)
+	}
+
+	window.alertsService = {
+		add: addNotification
+	}
+})();