Patch #1503046, Conditional compilation of zlib.(de)compressobj.copy

copy is only in newer versions of zlib.  This should allow zlibmodule
to work with older versions like the Tru64 buildbot.
diff --git a/Misc/ACKS b/Misc/ACKS
index e30cc61..4e29c7a 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -24,6 +24,7 @@
 Jason Asbahr
 David Ascher
 Peter Åstrand
+Chris AtLee
 John Aycock
 Donovan Baarda
 Attila Babo