ODS import with merged cells

[Markus Mohrhard]

Hey Michael,

>        Oh - hmm. So - for the collaborative editing work we need a clean
> interface between user input (controller) and the model. So far we're
> using the ScDocFunc for that, and at least we need to intercept all UI
> editing at some suitably granular level through there.
>
>        Of course for file-filters we don't want people to go through there so
> - that's fine ;-) but it'd be good not to start a "get rid of ScDocFunc"
> jihad in general [IMHO etc.].

That is not planned. Only during import all the code in ScDocFunc does
not make much sense. We neither need to repaint areas nor do we need
undo/redo code.

We did not plan to replace ScDocFunc calls in any other place in calc.

Regards,
Markus