My users don’t speak english, and changing the code of the panel is not a good option as it would be lost on every update.
It would be better to only update the po file.
All you have to do is put the strings inside the _() function and that’s it!!
Also, I recommend you to generate the .pot file with Poedit and upload it to
http://translate.google.com/toolkit
then share it with the community to let us translate it for you.
In the readme file write something like: “download translations here” and share via google drive.
I’m sure there’s gonna be a lot of volunteers to do the translations.
This is the way we translated the ultra popular wordpress-form-manager plugin. My name is there http://wordpress.org/plugins/wordpress-form-manager