Bump version, update contributors.

README.md

@@ -27,3 +27,4 @@ Contributors
 
 - Daniel Kraus (@bovender), main developer
 - Ulrich Strauss (@c0nnex), namespaces
+- Brent Laabs (@labster), bug fixes

extension.json

@@ -2,11 +2,12 @@
         "name": "LinkTitles",
         "author": [
                 "[https://www.mediawiki.org/wiki/User:Bovender Daniel Kraus (bovender)]", 
-                "Ulrich Strauss (c0nnex)"
+                "Ulrich Strauss (c0nnex)",
+                "Brent Laabs (labster)"
         ],
         "type": "parserhook",
         "url": "https://www.mediawiki.org/wiki/Extension:LinkTitles",
-        "version": "4.0.5",
+        "version": "4.0.6",
         "license-name": "GPL-2.0+",
         "descriptionmsg": "linktitles-desc",
         "requires": {