improve data on author_handle.json files

Updated URLs, Email addresses, GitHub handles,
Mastodon handles, and locations of various IOCCC winning authors.

author/David_Applegate.json

@@ -7,7 +7,7 @@
     "location_code" : "US",
     "location_name" : "United States of America",
     "email" : "davida@caam.rice.edu",
-    "url" : "http://www.caam.rice.edu/~davida",
+    "url" : "http://www.crpc.rice.edu/CRPC/newsletters/win00/pp_applegate.html",
     "alt_url" : null,
     "deprecated_twitter_handle" : null,
     "mastodon" : null,