Do the following:

  for i in `ls -R Swedish-*`; do iconv -f ISO-8859-1 -t UTF8 $i -o UTF8-$i; done

followed by:

  mkdir utf8
  cp UTF-8* utf8

And then

  cd utf8
  for file in UTF8-*; do mv "$file" "${file:5}"; done

And finally

  for i in *; do  sed -i '1s/^/$self{charset} = \x27UTF-8\x27; \n/' $i; done