Add Kevin O'Connor, author of the heapq code.
diff --git a/Misc/ACKS b/Misc/ACKS
index 6e48457..650f8ff 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -346,6 +346,7 @@
 Neal Norwitz
 Jeffrey Ollie
 Nigel O'Brian
+Kevin O'Connor
 Tim O'Malley
 Denis S. Otkidach
 Piet van Oostrum