I found a quick solution for this specific problem. The easiest way to exclude your crawler which executes js (like phantomjs) from all Google Analytics statistics is, to simply block the Google Analytics domain through the /etc/hosts.
127.0.0.1 www.google-analytics.com
127.0.0.1 google-analytics.com
It's the easiest way to prevent fake data. This way, you don't have to add a filter to all your clients.
( thanks for other answers )