The new code to add to your custom.css file to remove the upgrade notice is as follows:
Note: I got this from another site. It is not my own code, but added to my site and it works.
Don't be a leech, click the reputation button if you want to get more files in the future.
This plugin places an online indicator next to usernames in posts and private conversations messages.
You are able to specify the Font Awesome icon for both statuses, online and offline.
Compatible with Community Suite 4.1.15+
What's New in Version 1.0.5
- Added some settings.
- Support for round avatars.