[tz] Astrakhan region got approval to change its time zone

[Paul Eggert]

Alexander Krivenyshev wrote:
> Official document of the Federal Law 27-ФЗ can be found at:
>
> (in Russian)
>
> http://publication.pravo.gov.ru/Document/GetFile/0001201602150056?type=pdf

Thanks, I'll add this URL to the proposed patch before pushing. The "?type=pdf" 
part seems optional so I'll omit it.