Improve java compatibility by renaming _ method to nr

Change-Id: I07735272f148d67e40afe3ce2304131d7029afaf
diff --git a/Changes b/Changes
index 4e95d44..44958ab 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,7 @@
-0.56.2 2018-02-07
+0.56.2 2018-02-09
         - [feature] Introduce meta field retrieval method (diewald)
+        - [cleanup] Rename KrillQuery's "_"-method to "nr" to improve
+          compatibility with future versions of Java (diewald)
 
 0.56.1 2018-01-31
         - [bugfix] Changed relation serialization in snippet to work