Patch #3064: Port new turtle module and demos to 3.0.
diff --git a/Misc/ACKS b/Misc/ACKS
index eb2a651..7e2c340 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -411,6 +411,7 @@
 Bjorn Lindqvist
 Per Lindqvist
 Eric Lindvall
+Gregor Lingl
 Nick Lockwood
 Stephanie Lockwood
 Anne Lord