Improve how errors are displayed in the UI

app/assets/javascripts/components/actions/notifications.jsx

@@ -1,3 +1,4 @@
+export const NOTIFICATION_SHOW    = 'NOTIFICATION_SHOW';
 export const NOTIFICATION_DISMISS = 'NOTIFICATION_DISMISS';
 export const NOTIFICATION_CLEAR   = 'NOTIFICATION_CLEAR';
 
@@ -13,3 +14,11 @@ export function clearNotifications() {
     type: NOTIFICATION_CLEAR
   };
 };
+
+export function showNotification(title, message) {
+  return {
+    type: NOTIFICATION_SHOW,
+    title: title,
+    message: message
+  };
+};