Translated and fixed some code comments

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@7376 8aca7d54-2c30-db11-9de9-000461428c89
Finished translations of \boden\wege\schiene.h\

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@7377 8aca7d54-2c30-db11-9de9-000461428c89