Add Case Van Horsen to Misc/ACKS, for fractions module patches and other work
diff --git a/Misc/ACKS b/Misc/ACKS
index 41d72c1..0be765d 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -743,6 +743,7 @@
 Michael Urman
 Hector Urtubia
 Andi Vajda
+Case Van Horsen
 Atul Varma
 Dmitry Vasiliev
 Alexandre Vassalotti