The files have been converted using the following script:
for i in *.po; do
cat $i | grep charset | cut -d= -f2 | cut -d\\ -f1 > charset
echo Converting $i from `cat charset` to UTF-8
iconv -f `cat charset` -t UTF-8 < $i | sed "s/`cat charset`/UTF-8/g" > $i~
mv -f $i~ $i
rm -f charset
done
