This update for timezone fixes the following issues:

- Update 2018i:
São Tomé and Príncipe switches from +01 to +00 on 2019-01-01. (bsc#1120402)
- Update 2018h:
Qyzylorda, Kazakhstan moved from +06 to +05 on 2018-12-21
New zone Asia/Qostanay because Qostanay, Kazakhstan didn't move
Metlakatla, Alaska observes PST this winter only
Guess Morocco will continue to adjust clocks around Ramadan
Add predictions for Iran from 2038 through 2090

This update was imported from the SUSE:SLE-15:Update update project.