calligra.org/tables needs to be changed to calligra.org/sheets

[Friedrich W. H. Kossebau]

Hi,

now that Calligra Tables officially got renamed to Calligra Sheets, this needs 
to be reflected in the calligra.org website as well, ideally best before the 
next RC, because this is when a lot of people will visit those pages, and they 
better are consistent with what is actually released and talked about in the 
release announcement.

After all someone spent much time to make the website look very good IMHO, so 
please do not spoil that :)

It would be available to help here, just needs someone to tell me what and how 
to do it.

Cheers
Friedrich