Update notifications

Browser notifications will be sent when changes are detected:

Screen Shot 2019-02-19 at 9.59.27 AM.png (40 KB)

On the icon next to the Otsledit there will be a number of unread changes:

Screen Shot 2019-02-10 at 3.05.26 PM.png (6 KB)

The red icon signals that there are non-working tracks:

Screen Shot 2019-02-10 at 1.03.45 PM.png (6 KB)