I have been discussing with @darknao regarding these changes.
I trust him to be able to fix localization issues with this change.

One single question: I'm using langtable in another project and did not had to embed xml files in the repo, this looks weird to me. May you explain the motivation?

Those files are used by the langtable library to get what I'm looking for, in this case, translated language name.
I actually don't need all of them, since I'm only using the language part of it. But unless we have some kind of space restriction in this repo, I tend to avoid stripping bits from third party

I can use the gz version though. Yep, let's do that

Well, afterthought, we don't need to embed this library. We should use the packaged version instead.