Clarify that BrowserUK wrote the version of the pointer tracking for 0.72.
0.73's version has been somewhat refactored by me. (So blame me for the bugs.)
Small portion taken from the B module as shipped with perl 5.6.2.
-New pointer tracking & exception handling by BrowserUK
+Previously maintained by Tels <http://bloodgate.com>
-Maintained now by Tels <http://bloodgate.com>
+New pointer tracking & exception handling for 0.72 by BrowserUK
+
+Currently maintained by Nicholas Clark
=head1 COPYRIGHT