Fixed relation serialization of lemma as koral:token.

Change-Id: I1aaad693f34ea192653a260e7c8d69224c3645e9
diff --git a/Changes b/Changes
index eb18673..cfe5a6f 100644
--- a/Changes
+++ b/Changes
@@ -1,3 +1,7 @@
+0.28 2017-11-17 
+	- Added some enums of koral:operation (margaretha)
+	- Fixed node serialization of Annis QL containing lemma (margaretha)
+	
 0.27 2017-09-12
 	- Changed Cosmas2 wildcards serialization as regex (margaretha)  
 	- Fixed OP IN with classRefCheck.INCLUDES (margaretha)