Bug 1034570 - Notify the user if initial registration fails r=arthurcc

There is no tag being set. This means that if we have multiple notification being sent, then we will see multiple notifcations in the utility tray.

You should also make sure regarding the startup: if I reboot my device with a living Notification, it will be resent on reboot. Do we want this ? If so, it means you will need to add some system message handling. If we don't want this, then you should cleanup those notifications on startup.