- Use fix-cm.sty for European Computer Modern.
- Correct manifest.txt and usefiles.txt.
- Add \preface* command that does not perform a pagebreak.
- Add package `leadmark' to move !, ?, :, and ; away form the word.
- Proof natbib section from hhdiss.cls and maybe include it to bgteubner.cls.
  What does it do exactly?
- Adapt bgteubner.cls to recent version of scrbook.cls
- Fix figure and table numbering in case sub-numbering etc. are used.
