Upgrade to tzdata2011i
- Added South Sudan: Africa/Juba
- Samoa will go forward 24 hours at 30 December 2011 to better match
the day of the week with its neighbours.
- Europe/Kaliningrad will have the timezone KALT.
- Updates to Metlakatla historical data
- Newfoundland, Labrador and Resolute will do something which I
can't figure out.
- Add SS for South Sudan.