- Rebase to tzdata-2018i (includes changes from tzdata-2018h)
      - São Tomé and Príncipe changed from UTC+01 to UTC+00 on 2019-01-01.
      - Qyzylorda, Kazakhstan changed from UTC+06 to UTC+05 on 2018-12-21.
      - Created a new zone Asia/Qostanay since Qostanay, Kazakhstan didn't
        transition with the Qyzylorda change.
      - Metlakatla, Alaska will observe PST for this winter only.
      - Predict that Morocco will continue to adjust clocks around Ramadan.
      - Also include predictions for Iran from 2038 through 2090.