[tz] Rename Ukrainian cities to their official transliterated names

Thu Oct 4 08:54:55 UTC 2018

On Oct 3, 2018, at 11:45 PM, Paw Boel Nielsen via tz <tz at iana.org> wrote:
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> I propose we change all tz identifiers to randomly generated characters to ensure no UI designer considers showing them to end users.

I've already made similar suggestions; that would get rid of the "why isn't it Asia/Beijing"? complaints, and would also mean I wouldn't get shown "America/Los_Angeles" as the appropriate choice even though I'm about 500 km from there.