Replace some zones with links when that doesn't lose useful info.

This is like the 2013-09-02 change, but for the Pacific this time.
* antarctica (Antarctica/DumontDUrville):
* australasia (Pacific/Tahiti, Pacific/Saipan, Pacific/Majuro)
(Pacific/Chuuk, Pacific/Pohnpei, Pacific/Palau, Pacific/Funafuti)
(Pacific/Midway, Pacific/Wake, Pacific/Wallis):
Remove zone, replacing each with a link to a region that has had
the same UTC offset since 1970.  This removes data that were
largely invented, either by us or almost surely by Shanks or his
sources.
* asia, australasia, northamerica: Create links accordingly.
* NEWS: Document this.

australasia

@@ -355,8 +355,7 @@ Zone	Pacific/Gambier	 -8:59:48 -	LMT	1912 Oct	# Rikitea
 			 -9:00	-	GAMT	# Gambier Time
 Zone	Pacific/Marquesas -9:18:00 -	LMT	1912 Oct
 			 -9:30	-	MART	# Marquesas Time
-Zone	Pacific/Tahiti	 -9:58:16 -	LMT	1912 Oct	# Papeete
-			-10:00	-	TAHT	# Tahiti Time
+# See Pacific/Honolulu for Tahiti.
 # Clipperton (near North America) is administered from French Polynesia;
 # it is uninhabited.
 
@@ -366,11 +365,16 @@ Zone	Pacific/Guam	-14:21:00 -	LMT	1844 Dec 31
 			 9:39:00 -	LMT	1901		# Agana
 			10:00	-	GST	2000 Dec 23	# Guam
 			10:00	-	ChST	# Chamorro Standard Time
+Link Pacific/Guam Pacific/Saipan # N Mariana Is
 
 # Kiribati
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Tarawa	 11:32:04 -	LMT	1901		# Bairiki
 			 12:00	-	GILT		 # Gilbert Is Time
+Link Pacific/Tarawa Pacific/Funafuti # Tuvalu
+Link Pacific/Tarawa Pacific/Majuro   # Marshall Is (most locations)
+Link Pacific/Tarawa Pacific/Wake     # in US minor outlying islands
+Link Pacific/Tarawa Pacific/Wallis   # Wallis and Futuna
 Zone Pacific/Enderbury	-11:24:20 -	LMT	1901
 			-12:00	-	PHOT	1979 Oct # Phoenix Is Time
 			-11:00	-	PHOT	1995
@@ -381,29 +385,20 @@ Zone Pacific/Kiritimati	-10:29:20 -	LMT	1901
 			 14:00	-	LINT
 
 # N Mariana Is
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone Pacific/Saipan	-14:17:00 -	LMT	1844 Dec 31
-			 9:43:00 -	LMT	1901
-			 9:00	-	MPT	1969 Oct # N Mariana Is Time
-			10:00	-	MPT	2000 Dec 23
-			10:00	-	ChST	# Chamorro Standard Time
+# See Pacific/Guam.
 
 # Marshall Is
+# See Pacific/Tarawa for most locations.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone Pacific/Majuro	11:24:48 -	LMT	1901
-			11:00	-	MHT	1969 Oct # Marshall Islands Time
-			12:00	-	MHT
 Zone Pacific/Kwajalein	11:09:20 -	LMT	1901
 			11:00	-	MHT	1969 Oct
 			-12:00	-	KWAT	1993 Aug 20	# Kwajalein Time
 			12:00	-	MHT
 
 # Micronesia
+# See Pacific/Guadalcanal for Pohnpei.
+# See Pacific/Port_Moresby for Chuuk.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone Pacific/Chuuk	10:07:08 -	LMT	1901
-			10:00	-	CHUT			# Chuuk Time
-Zone Pacific/Pohnpei	10:32:52 -	LMT	1901		# Kolonia
-			11:00	-	PONT			# Pohnpei Time
 Zone Pacific/Kosrae	10:51:56 -	LMT	1901
 			11:00	-	KOST	1969 Oct	# Kosrae Time
 			12:00	-	KOST	1999
@@ -509,15 +504,15 @@ Zone	Pacific/Norfolk	11:11:52 -	LMT	1901		# Kingston
 			11:30	-	NFT		# Norfolk Time
 
 # Palau (Belau)
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone Pacific/Palau	8:57:56 -	LMT	1901		# Koror
-			9:00	-	PWT	# Palau Time
+# See Asia/Tokyo.
 
 # Papua New Guinea
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Port_Moresby 9:48:40 -	LMT	1880
 			9:48:32	-	PMMT	1895	# Port Moresby Mean Time
 			10:00	-	PGT		# Papua New Guinea Time
+Link Pacific/Port_Moresby Antarctica/DumontDUrville
+Link Pacific/Port_Moresby Pacific/Chuuk # in Micronesia
 
 # Pitcairn
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -532,6 +527,7 @@ Zone Pacific/Pago_Pago	 12:37:12 -	LMT	1879 Jul  5
 			-11:00	-	NST	1967 Apr	# N=Nome
 			-11:00	-	BST	1983 Nov 30	# B=Bering
 			-11:00	-	SST			# S=Samoa
+Link Pacific/Pago_Pago Pacific/Midway # in US minor outlying islands
 
 # Samoa (formerly and also known as Western Samoa)
 
@@ -619,6 +615,7 @@ Zone Pacific/Apia	 12:33:04 -	LMT	1879 Jul  5
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Guadalcanal 10:39:48 -	LMT	1912 Oct	# Honiara
 			11:00	-	SBT	# Solomon Is Time
+Link Pacific/Guadalcanal Pacific/Pohnpei # in Micronesia
 
 # Tokelau Is
 #
@@ -657,9 +654,7 @@ Zone Pacific/Tongatapu	12:19:20 -	LMT	1901
 			13:00	Tonga	TO%sT
 
 # Tuvalu
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone Pacific/Funafuti	11:56:52 -	LMT	1901
-			12:00	-	TVT	# Tuvalu Time
+# See Pacific/Tarawa.
 
 
 # US minor outlying islands
@@ -724,21 +719,13 @@ Zone Pacific/Funafuti	11:56:52 -	LMT	1901
 # Fri. 6:30A Lv. HONOLOLU (Pearl Harbor), H.I.   H.L.T. Ar. 5:30P Sun.
 #  "   3:00P Ar. MIDWAY ISLAND . . . . . . . . . M.L.T. Lv. 6:00A  "
 #
-Zone Pacific/Midway	-11:49:28 -	LMT	1901
-			-11:00	-	NST	1956 Jun  3
-			-11:00	1:00	NDT	1956 Sep  2
-			-11:00	-	NST	1967 Apr	# N=Nome
-			-11:00	-	BST	1983 Nov 30	# B=Bering
-			-11:00	-	SST			# S=Samoa
+# See Pacific/Pago_Pago.
 
 # Palmyra
 # uninhabited since World War II; was probably like Pacific/Kiritimati
 
 # Wake
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Pacific/Wake	11:06:28 -	LMT	1901
-			12:00	-	WAKT	# Wake Time
-
+# See Pacific/Tarawa.
 
 # Vanuatu
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
@@ -753,9 +740,7 @@ Zone	Pacific/Efate	11:13:16 -	LMT	1912 Jan 13		# Vila
 			11:00	Vanuatu	VU%sT	# Vanuatu Time
 
 # Wallis and Futuna
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Pacific/Wallis	12:15:20 -	LMT	1901
-			12:00	-	WFT	# Wallis & Futuna Time
+# See Pacific/Tarawa.
 
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