Fix author URLs

All the authors now have either a null URL, a valid URL or one on the
Internet Wayback Machine.

Where it seemed likely (say because the domain no longer exists) emails
were set to null also.

Now unless a bug is found in the script this really should finish the
checks of authors.html.

author/Adrian_Mariano.json

@@ -5,8 +5,8 @@
     "full_name" : "Adrian Mariano",
     "sort_word" : "mariano",
     "location_code" : "US",
-    "email" : "adrian@cam.cornell.edu",
-    "url" : "http://cam.cornell.edu/adrian/",
+    "email" : null,
+    "url" : null,
     "alt_url" : null,
     "deprecated_twitter_handle" : null,
     "mastodon" : null,

author/Don_Dodson.json

@@ -6,7 +6,7 @@
     "sort_word" : "dodson",
     "location_code" : "US",
     "email" : null,
-    "url" : "http://www.neta.com/~dodson/",
+    "url" : "https://web.archive.org/web/20000816152741/http://www.neta.com/~dodson/",
     "alt_url" : null,
     "deprecated_twitter_handle" : null,
     "mastodon" : null,

author/Doron_Osovlanski.json

@@ -6,7 +6,7 @@
     "sort_word" : "osovlanski",
     "location_code" : "IL",
     "email" : null,
-    "url" : "http://www.cadtech.co.il/profile.html",
+    "url" : null,
     "alt_url" : null,
     "deprecated_twitter_handle" : null,
     "mastodon" : null,

author/Ed_Lycklama.json

@@ -5,8 +5,8 @@
     "full_name" : "Ed Lycklama",
     "sort_word" : "lycklama",
     "location_code" : "ZZ",
-    "email" : "eal@klg.com",
-    "url" : "http://www.klg.com",
+    "email" : null,
+    "url" : null,
     "alt_url" : null,
     "deprecated_twitter_handle" : null,
     "mastodon" : null,

author/Jim_Hague.json

@@ -5,8 +5,8 @@
     "full_name" : "Jim Hague",
     "sort_word" : "hague",
     "location_code" : "GB",
-    "email" : "jim.hague@acm.org",
-    "url" : "http://www.oxinet.co.uk/jim",
+    "email" : null,
+    "url" : "https://web.archive.org/web/19991003012715/http://www.oxinet.co.uk/jim/",
     "alt_url" : null,
     "deprecated_twitter_handle" : null,
     "mastodon" : null,

author/Nathan_Sidwell.json

@@ -5,8 +5,8 @@
     "full_name" : "Nathan Sidwell",
     "sort_word" : "sidwell",
     "location_code" : "GB",
-    "email" : "nathan@cs.bris.ac.uk",
-    "url" : "http://www.cs.bris.ac.uk/~nathan/",
+    "email" : null,
+    "url" : null,
     "alt_url" : null,
     "deprecated_twitter_handle" : null,
     "mastodon" : null,

author/Paul_Dale.json

@@ -6,7 +6,7 @@
     "sort_word" : "dale",
     "location_code" : "AU",
     "email" : null,
-    "url" : "http://www.jcu.edu.au/~ccptd/",
+    "url" : null,
     "alt_url" : null,
     "deprecated_twitter_handle" : null,
     "mastodon" : null,

author/Paul_Heckbert.json

@@ -5,7 +5,7 @@
     "full_name" : "Paul Heckbert",
     "sort_word" : "heckbert",
     "location_code" : "US",
-    "email" : "ph@cs.cmu.edu",
+    "email" : "heckendo@uidaho.edu",
     "url" : "https://www.cs.cmu.edu/~ph/",
     "alt_url" : null,
     "deprecated_twitter_handle" : null,

author/Peter_J_Ruczynski.json

@@ -5,8 +5,8 @@
     "full_name" : "Peter J Ruczynski",
     "sort_word" : "ruczynski",
     "location_code" : "GB",
-    "email" : "pete@softbase.demon.co.uk",
-    "url" : "http://www.softbase.co.uk/",
+    "email" : null,
+    "url" : "https://web.archive.org/web/20041128214304/http://www.softbase.co.uk/",
     "alt_url" : null,
     "deprecated_twitter_handle" : null,
     "mastodon" : null,

author/Roemer_B_Lievaart.json

@@ -5,8 +5,8 @@
     "full_name" : "Roemer B. Lievaart",
     "sort_word" : "lievaart",
     "location_code" : "NL",
-    "email" : "roemer.lievaart@xs4all.nl",
-    "url" : "http://huizen.dds.nl/~lievaart",
+    "email" : null,
+    "url" : null,
     "alt_url" : null,
     "deprecated_twitter_handle" : null,
     "mastodon" : null,

author/Sandro_Maffiodo.json

@@ -6,7 +6,7 @@
     "sort_word" : "maffiodo",
     "location_code" : "IT",
     "email" : null,
-    "url" : "http://www.assezeta.com/sandromaffiodo",
+    "url" : "https://web.archive.org/web/20170706135649/http://www.assezeta.com/sandromaffiodo/",
     "alt_url" : null,
     "deprecated_twitter_handle" : null,
     "mastodon" : null,

author/Sebastian_Deorowicz.json

@@ -6,7 +6,7 @@
     "sort_word" : "deorowicz",
     "location_code" : "PL",
     "email" : "sdeorowicz@gmail.com",
-    "url" : "https://sun.aei.polsl.pl//~sdeor/",
+    "url" : "https://sun.aei.polsl.pl/~sdeor/",
     "alt_url" : null,
     "deprecated_twitter_handle" : null,
     "mastodon" : null,