Implement notifications

ember/app/components/application/notification.js

@@ -0,0 +1,11 @@
+import Ember from 'ember';
+
+export default Ember.Component.extend({
+  classNames: ['notification'],
+  classNameBindings: ['notification.isRead::unread'],
+
+  click: function() {
+    console.log('click')
+    this.get('notification').set('isRead', true).save();
+  }
+});