We use Travis CI at Fusion, and some team members find it helpful to have build status appear as a system notification. Our preferred tool for this is CCMenu.
Follow Travis CI's documentation for CCMenu.
The URL you'll be using will be like this:
https://api.travis-ci.com/repos/fusioneng/fusion-theme/cc.xml?token=<? YOUR TOKEN ?>
You can get your token from the Travis CI dashboard.