Minor cleanup

* avoid node ids if possible
* remove whatsit ids
* some code not used anymore
Update/add examples
Update documentation

There is no need to document the virtual machine
anymore, as it is not part of any distribution.
Documentation update

The english part is now mostly done. Probably many
typos and such, but at least there are some examples
in there now.
Translate layout XML EN <---> DE

This script allows translation of the layout rules
from de to en and back. Still needs improvement
but it helps a lot to provide examples in both
languages
Bugfix: set column in <EmptyLine />

This will break backward compatibility but the
previous behavior was nonsense.