i18n re-work needed

[marzavec]

The ignorantly implemented internationalization initialization, irritatingly, ignores inner-regional interchange.

(And other reasons I get kicked off development teams)

The short version of the issue is that the internationalization code only supports two letter i18l codes, which can cause issues when it comes to defaulting to a users preferred language. The issue is only relevant when working with two separate languages that use the same starting code, like zh-CN and zh-TW. The i18l will only use the zh part, which can result in the incorrect language being loaded by default. More info can be found in: #27

[KnowsCount]

#31 is a new pr enhancing my current Chinese translation. I have reviewed them and it lgtm. you can merge the changes when you have the time.