0.9.12: Steam names in other alphabets, wording fixes, Chinese on the way

This update is mostly groundwork you can't see: every word in the game can now be translated, and Simplified Chinese is the first language on the way. In English the game reads exactly as it did, apart from a few fixes.

Names

• Steam names written in other alphabets now show properly in the lobby, the player list and chat. A name in Chinese, Russian or Korean used to appear as "Player".

Wording

• Counts read properly when there's only one: "1 life", "1 round", "1 second" (it used to say "1 lives" and "1 rounds" in a few places).