Sync zoneinfo database with tzdata2011k from elsie.nci.nih.gov

Sync zoneinfo database with tzdata2011k from elsie.nci.nih.gov

asia:           8.65 -> 8.68
europe:         8.34 -> 8.38
northamerica:   8.48 -> 8.49
zone.tab:       8.47 -> 8.49

* asia: Palestine suspends DST during Ramadan in 2011; Gaza and Hebron
    split in 2011, leading to a new Asia/Hebron zone (thanks to
    Steffen Thorsen and Alexander Krivenshev). The different end of DST
    in Gaza and Hebron in 2008 is also reflected.

* europe: Belarus adopts permanent DST in 2011 (thanks to Yauhen Kharuzhy,
    Alexander Bokovoy, Alexander Krivenyshev, and Kirill A. Shutemov).
    Ukraine adopts permanent DST in 2011 (thanks to Alexander Krivenyshev).
    "Russia" rules changed to reflect end of use in 2010. "FET" used as
    abbreviation for Belarus, Ukraine, and western Russia (thanks to
    Paul Eggert). Also: a comment typo is fixed.

* northamerica: Updated comment on Newfoundland's 2011 change of time of
    day when DST starts and ends (thanks to Michael Pelley).

* zone.tab: New Asia/Hebron zone (thanks to Alexander Krivenshev).