pgsql: Update time zone data files to tzdata release 2015d.

Update time zone data files to tzdata release 2015d.

DST law changes in Egypt, Mongolia, Palestine.
Historical corrections for Canada and Chile.
Revised zone abbreviation for America/Adak (HST/HDT not HAST/HADT).

Branch
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REL9_0_STABLE

Details
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http://git.postgresql.org/pg/commitdiff/3c3749a3bf79dce21384a04981c34a6c8ec1780a

Modified Files
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src/timezone/data/africa         |   67 +++++--------
src/timezone/data/antarctica     |   51 +---------
src/timezone/data/asia           |   35 +++++--
src/timezone/data/australasia    |   27 +-----
src/timezone/data/backward       |    1 +
src/timezone/data/backzone       |   76 +++++++++++++++
src/timezone/data/europe         |    4 +-
src/timezone/data/northamerica   |  198 ++++++++++++++++++++++++++------------
src/timezone/data/southamerica   |  170 ++++++++++++++++++--------------
src/timezone/known_abbrevs.txt   |    8 +-
src/timezone/tznames/America.txt |    6 +-
src/timezone/tznames/Asia.txt    |    9 +-
src/timezone/tznames/Default     |    5 +-
src/timezone/tznames/Pacific.txt |    2 +-
14 files changed, 389 insertions(+), 270 deletions(-)