Allow customization of the banner at the top of the admin pane after login. Currently you have a banner that states:

"You are currently viewing the new Ul for the Devices page. If you would like to temporarily switch back to the old view, click here."

We have a specific requirement to add a banner to any system with user-added content about what type of data is allowed to be uploaded. It would be awesome to be able to customize the banner to add a message to users of the system.