First add-on is the possibility to have a separate static-web.zip generated, which contains all relevant content, that should be deployed to a separate webserver.
All you have to do is to add the following to your war/pom.xml
<!-- assamble static content -->
Next step is to add a new folder in the web project (src\main\assembly) and create the needed assembly file (static.xml)
If you now run maven clean install than you get a new static-web.zip file generated, which contains all the defined files and folders.