Fixed OPOV

Change-Id: Ia630648357210cbac9c32a29ec9513cc21bda214
diff --git a/Changes b/Changes
index b4bc7bd..be9fd4b 100644
--- a/Changes
+++ b/Changes
@@ -1,9 +1,10 @@
-0.33 2019-02-15
+0.33 2019-02-20
     - Added debug flags (margaretha)
     - [bugfix] Fixed poliqarp layer bug (#52; margaretha)
     - Replaced log4j with log4j2 (margaretha)
     - Fixed issue #43 - C2 OPIN (margaretha)
     - [bugfix] Flatten serialization of query errors (diewald, margaretha) 
+    - Fixed OPOV and added range in OPOV grammar (margaretha)
     
 0.32 2018-12-13
     - [bugfix] Support verbatim string queries (#57; diewald).