Start editing and then after updating a po run:
-msgconv -t ISO-8859-1 de.po > de.po.new && mv de.po.new de.po
+msgconv -t utf-8 de.po > de.po.new && mv de.po.new de.po
msgfmt -cv -o de.mo de.po
mv de.mo ../locale/de/LC_MESSAGES/edoko.mo
\ No newline at end of file