Clarified documentation

Not really happy with the fact that the configuration files were added to this pull request but I cannot figure out how to remove them. I am quite a newbie to git. The only file that really matters is the filterlink.gdoc file.
Is it really a good idea to keep the .project and .classpath files within version control? I think it would be easier to have a maven pom.xml file so that these files can be generated with the eclipse::eclipse command. There was a pom-file for a while but I think it got lost in one of the updates. Was it too hard to maintain it?