FIX: add some linebreaks to the way info

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6361 8aca7d54-2c30-db11-9de9-000461428c89
FIX: do not complain about empty string

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6362 8aca7d54-2c30-db11-9de9-000461428c89
FIX: registered lines/convoys were not properly registered when deleting station tile

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6363 8aca7d54-2c30-db11-9de9-000461428c89