Restore BL's authorship attribution, and add "The Jsoncpp Authors" where it was missing.

Requested/noticed in https://github.com/open-source-parsers/jsoncpp/pull/610, and a
followup to https://github.com/open-source-parsers/jsoncpp/pull/607 .
diff --git a/devtools/antglob.py b/devtools/antglob.py
index 75615ed..9843765 100644
--- a/devtools/antglob.py
+++ b/devtools/antglob.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 # encoding: utf-8
-# Copyright 2009 The JsonCpp Authors
+# Copyright 2009 Baptiste Lepilleur and The JsonCpp Authors
 # Distributed under MIT license, or public domain if desired and
 # recognized in your jurisdiction.
 # See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE