#703

This may happen when changing the Clote document property.

Also move cloze-code into Cloze and no longer have it in a general 
purpose service.

The default value of the child class overrides the value set by the 
parent constructor.

#700

#700

#702

#706

#702

#704

This service is unused for a long time.

Now the paragraphs are shown actually below each other and not next to.

#699

For automatic numbering of droplist items another node level 
(div-element) was introduced to the element DOM. Therefore this 
functions needs to look another node further up for it's position.

#694

- Image
- Hotspot-Image
- Audio
- Video
- Geometry
- DragNDropValueObject (imgFileName, audioFileName)
- LikertRowElement (imgFileName, audioFileName)

Just ignore the color in the component.

- editor and player have their own services to handle the errors

- remove 'own' as possible connection