Lucene 5.0 update

Change-Id: I5fa86da7e959a8394652148d78248590bb71b2a7
diff --git a/Changes b/Changes
index af767f1..dbb36db 100644
--- a/Changes
+++ b/Changes
@@ -1,3 +1,9 @@
+0.54 2015-10-01
+   	- [performance] Updated Lucene dependency from 4.10.3
+	  to 5.0.0 (diewald)
+        - [bugfix] Minor fixes regarding invalid tokens in the
+	  test suite (diewald)
+
 0.53 2015-09-25
         - [feature] Implemented new KrillCollection (diewald)
 	  This should fix a lot of issues with deleted