TODO

Data formats:
* Understand the password section
* Understand and document 10000050 file types (Agenda, Data, etc)

Parser:
* Incorporate the replacement section. Stubs are already in place.
* Check image parsing works for other things than 2-bits greyscale.
* Complete Sheet
* Add more file formats

Generator:
* Add audio file support.
* Check image file generation works for other things than 2 bits greyscale
* Add Sheet
* Add more file formats

Psiconv program:
* HTML: Verify generated code, to see whether it is HTML-4.01 compatible
* XHTML: Verify generated code, to see whether it is XHTML compatible
* HTML,XHTML: Add support for images
* RTF: Make it usable. Not nearly finished at the moment. Dead project.
* LATEX: re-enable or delete. Dead project.
* IMAGE: support for special things like clipping is still lacking at the
         generator side. 

Config files:
* Add hex parsing

General:
* Many common values are returned as int. Perhaps change this to long,
  for better behaviour on very large files on some architectures?
* Use libaudiofile for audio conversions?
* Look at portability (headers)
* Add more comments in data.h