Removed classRefCheck in OPIN without any arguments.

Change-Id: Ib684f42862d2ec725d2b8b73b1f77098b0123662
diff --git a/Changes b/Changes
index 3a859d4..097242c 100644
--- a/Changes
+++ b/Changes
@@ -3,6 +3,7 @@
 	- Updated maven dependency phase (margaretha)
     - Fixed handling of non-necessary brackets in tokens (diewald)
     - Improved error handling (margaretha)
+    - Added wrap to koral:span serialization (margaretha)
 
 0.25 2017-05-10
 	- Altered dominance and relation serialization (margaretha)