[Lazarus] wikiconvert to fpdoc format using outdated structure for xml generation

[Andreas Frieß]

> If you want fpdoc to process it: yes.
>
> I don't understand why Wiki2FPDocConvert doesn't do it right in the 
> first place.
> The fpdoc format has been the same since day 1.
>
> Michael.
>

I dont know why, so i want to ask here first. The converter was build by 
Mattias in 2012. This is the reason for my question, before i change 
something and send patches to Mantis :-)