[tz] tz dependency lat & lng

[Paul Eggert]

Guy, thanks for reviewing that part of tz-link.htm.
I think Derick Rethans earlier mentioned that new web page too.
I pushed the following to add a pointer to it and to
try to address the other issues you mentioned.

>From 0aaf9396980105491ef6fc2eb16f72901f50032a Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert at cs.ucla.edu>
Date: Thu, 5 Sep 2013 11:45:20 -0700
Subject: [PATCH] * tz-link.htm (href): Update shapefile citations.

Reported by Guy Harris in
<http://mm.icann.org/pipermail/tz/2013-September/019974.html>.
---
 tz-link.htm | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/tz-link.htm b/tz-link.htm
index 9eea060..6752cfc 100644
--- a/tz-link.htm
+++ b/tz-link.htm
@@ -8,7 +8,7 @@
 <meta http-equiv="Content-type" content='text/html; charset="US-ASCII"'>
 <meta name="DC.Creator" content="Eggert, Paul">
 <meta name="DC.Contributor" content="Olson, Arthur David">
-<meta name="DC.Date" content="2013-07-03">
+<meta name="DC.Date" content="2013-09-05">
 <meta name="DC.Description"
  content="Sources of information about time zones and daylight saving time">
 <meta name="DC.Identifier"
@@ -394,12 +394,15 @@ but the maps are more up to date.</li>
 </ul>
 <h2>Time zone boundaries</h2>
 <ul>
-<li><a href="http://efele.net/maps/tz/">TZ timezone maps</a> contains a <a
-href="http://en.wikipedia.org/wiki/Shapefile">shapefile</a> of the
-<code>tz</code> regions in the world.</li>
-<li><a href="http://statoids.com/statoids.html">Administrative Divisions
-of Countries ("Statoids")</a> contains detailed lists of
-<code>tz</code>-related zone subdivision data.</li>
+<li><a href="http://efele.net/maps/tz/">TZ timezones maps</a> contains <a
+href="http://en.wikipedia.org/wiki/Shapefile">shapefiles</a> of
+sets of <code>tz</code> regions.</li>
+<li><a href="http://derickrethans.nl/what-time-is-it.html">What Time
+is It Here?</a> applies <a href="http://www.mongodb.org/">MongoDB</a>
+geospatial query operators to shapefiles' data.</li>
+<li><a href="http://statoids.com/statoids.html">Administrative
+Divisions of Countries ("Statoids")</a> contains lists of
+political subdivision data related to time zones.</li>
 <li><a href="http://home.tiscali.nl/~t876506/Multizones.html">Time
 zone boundaries for multizone countries</a> summarizes legal
 boundaries between time zones within countries.</li>
-- 
1.8.1.2