Sync zoneinfo database with tzdata2011i from elsie.nci.nih.gov

Sync zoneinfo database with tzdata2011i from elsie.nci.nih.gov

africa:         8.31 -> 8.32
australasia:    8.23 -> 8.25
europe:         8.33 -> 8.34
iso3166.tab:    8.9  -> 8.11
northamerica:   8.42 -> 8.48
zone.tab:       8.45 -> 8.47

* africa: Add Africa/Juba (South Sudan) zone.

* australasia: Samoa moves from east to west of the international date line
    (changes from UTC-11 to UTC+13). It will skip December 30, 2011.
    Thanks to David Zuelke and Mark Sim-Smith.

* europe: Use KALT as abbreviation for Europe/Kalinigrad from spring 2011
    forward (thanks to Yoshito Umaoka).

* iso3166.tab: Add SS (South Sudan) entry.

* northamerica:
    - Newfoundland changes time of day for DST start and end to 2:00 a.m.
      starting fall 2011 and forward (thanks to Michael Pelley).
    - Change America/Resolute use of EST to 2006-2007 only (thanks to
      Chris Walton).
    - Assume Metlakatla abandoned use of daylight saving as a result of
      its 1983 vote.
    - Avoid unnecessary use of US rule in America/Honolulu; fix two
      typos in America/Honolulu comments.
    - Adjust America/Goose_Bay as well as America/St_Johns from fall 2011
      forward (thanks to Chris Walton).

* zone.tab:
    - Change America/Resolute entry to Central Standard Time.
      (thanks to Chris Walton).
    - Add SS (South Sudan, Africa/Juba) entry.