Move test_tokenize to doctest.

Done as GHOP 238 by Josip Dzolonga.
diff --git a/Misc/ACKS b/Misc/ACKS
index f7a08d4..43bbb90 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -178,6 +178,7 @@
 Andy Dustman
 Gary Duzan
 Eugene Dvurechenski
+Josip Dzolonga 
 Maxim Dzumanenko
 Hans Eckardt
 Grant Edwards