* NEWS: Document this.
* backzone (America/Cayman): Move from here ...
* northamerica: ... back to here, and assume US-style DST starting 2016.
* zone1970.tab (KY): Now a separate row, since KY and PA disagree
starting 2016.
* NEWS: Document this.
* backzone (Mont, America/Montreal):
Move this out-of-scope data here from 'northamerica'.
* checktab.awk: Remove special case for America/Montreal,
that was added to this file "temporarily" on 2013-09-11.
* northamerica (America/Montreal): Now a link to America/Toronto.
* NEWS: Document this.
* australasia (Pacific/Guam): Now a link to Pacific/Guam.
(Pacific/Midway): Now a link to Pacific/Pago_Pago.
* backzone (America/Antigua, America/Cayman, Pacific/Miday)
(Pacific/Saipan): Move these four entries here from the other files.
* checktab.awk: Remove special cases for the four zones.
* northamerica (America/Cayman): Now a link to America/Panama.
(America/Antigua): Move to ...
* southamerica (America/Antigua): ... here, and make it a link to
America/Port_of_Spain.
* asia (Asia/Bahrain): Now links to Asia/Qatar.
(Asia/Kuwait, Asia/Aden): Now links to Asia/Riyadh.
(Asia/Muscat): Now links to Asia/Dubai.
* backzone: Move the old data here.
* checktab.awk (tztab): Remove special cases for these zones.
* NEWS: Document the above.
Problem reported by Stephen Colebourne in:
http://mm.icann.org/pipermail/tz/2014-November/021888.html
* backward (Africa/Asmera): Link to Africa/Nairobi,
not to Africa/Asmara.
* backzone (Africa/Asmera): New link, to override 'backward'.
* NEWS: Document fixes.
* africa (Africa/Addis_Ababa, Africa/Asmara, Africa/Dar_es_Salaam)
(Africa/Djibouti, Africa/Kampala, Africa/Mogadishu, Indian/Antananarivo)
(Indian/Comoro, Indian/Mayotte):
Change these from zones to links to Africa/Nairobi.
* backzone: Move the old data here.
* checktab.awk (tztab): Remove special cases for these zones.
* NEWS: Document the above.
* africa, asia, australasia, backzone, europe, northamerica:
* southamerica, tz-link.htm: Be less enthusiastic about Shanks.
* tz-link.htm: Be clearer about UT vs UTC.
* NEWS: Document this.
I obtained a copy of Trần Tiến Bình's 2005 book "Lịch Việt Nam:
thế kỷ XX-XXI (1901-2100)", verified that www.thoigian.com.vn's
page is a verbatim quote of a passage in pages 45-50, and added a
list of Trần's sources for his pp 49-50.
* asia (Asia/Phnom_Penh, Asia/Vientiane):
Change these from zones to links to Asia/Bangkok.
* backzone: Move the old data here.
* checktab.awk (tztab): Remove special cases for these zones.
* NEWS: Document the above.
* africa (Africa/Blantyre, Africa/Bujumbura, Africa/Gaborone)
(Africa/Harare, Africa/Kigali, Africa/Lubumbashi, Africa/Lusaka):
Change these from zones to links to Africa/Maputo.
(Africa/Maseru, Africa/Mbabane):
Change these from zones to links to Africa/Johannesburg.
* backzone: Move the old data here.
* checktab.awk (tztab): Remove special cases for these zones.
* NEWS: Document the above.
* asia: Move commentary about Portuguese India from here ...
* backzone: ... to here. Add comment about 19th-century Madras time.
* NEWS: Document this.
This illustrates how 'backzone' can be used to migrate
out-of-scope data out of the database proper.
* africa (Africa/Luanda, Africa/Porto-Novo, Africa/Douala, Africa/Bangui)
(Africa/Kinshasa, Africa/Brazzaville, Africa/Malabo, Africa/Libreville)
(Africa/Niamey): Change these from zones to links (to Africa/Lagos).
Move their old data from here ...
* backzone: ... to here.
* checktab.awk (tztab): Remove special cases for these zones.
* NEWS: Document the above.
* backzone: New file.
* Makefile (DATA): Add backzone.
(check_character_set): Check it.
(posix_packrat): New rule.
(.PHONY): Add it.
* NEWS: Document the above.
