You can checkout the project via SVN using

svn co http://tobiasvogel.repositoryhosting.com/svn_public/tobiasvogel_angrybirds-installer angrybirds-installer

or checkout through your webbrowser using ​this link.

Launch the installer-script by simply typing

angrybirds-installer/angrybirds.sh

in a termnal window.

You can use the "-h" switch for more usage options.