documentation update: International support

[Geert Janssens]

On Friday 10 September 2010, jh wrote:
> Attached is my digest. Going by your 90% criteria, there are now 8 fully
> translated :(
8 is not much really much. Of course the percentage of translated messages is 
only one metric to use. We recently entered string freeze, which is often a 
trigger for translators to start updating the po files. So it's very well 
possible several po files will be updated in the coming weeks.

Geert