Any gem to create a 'What's new' page like the one I see in https://www.hatchbox.io/announcements

Do you guys know any gems to quickly build a 'Whats new' page like the one in https://www.hatchbox.io/announcements?

All the code for this the feature is in https://github.com/excid3/jumpstart

You'll want to grab:
1. Database column on User for last read announcements timestamp
2. Announcements model
3. Announcements routes, controller, and views
4. The navbar code to highlight the What's New link when there is are unread announcements for the user.

Thanks a lot Chris, exactly what we needed.