Remove lots of old commetns and some whitespaces

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6874 8aca7d54-2c30-db11-9de9-000461428c89
Stupid svn merged no-existing changes

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6875 8aca7d54-2c30-db11-9de9-000461428c89