FIX uninitialized variables

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6423 8aca7d54-2c30-db11-9de9-000461428c89
ADD: (jk271/Dwachs) finance history distinguishes transport type

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6424 8aca7d54-2c30-db11-9de9-000461428c89