Fixed attribute serialization bug (at leat for non-spans)

Change-Id: I2bb46509d71450238812e4d0a26c5690dd51d49d
diff --git a/Changes b/Changes
index 95bc323..336e7a8 100644
--- a/Changes
+++ b/Changes
@@ -1,14 +1,19 @@
+0.55.1 2016-02-10
+        - [bugfix] Fixed attribute serialization in MatchInfo (diewald)
+
 0.55 2016-02-04
         - [feature] Introducing payload identifiers to the index
 	  structure (diewald, margaretha)
+	  ! This is a major release, introducing index features  !
+	  ! not compatible with indices of old versions of Krill !
 
 0.54 2015-11-13
    	- [performance] Updated Lucene dependency from 4.10.3
 	  to 5.0.0 (diewald)
         - [bugfix] Minor fixes regarding invalid tokens in the
 	  test suite (diewald)
-	- Fixed krill.properties test (diewald)
-	- Fixed multiple distances in disjunction query
+	- [bugfix] Fixed krill.properties test (diewald)
+	- [bugfix] Fixed multiple distances in disjunction query
 	  (GitHub issue #2; margaretha)
 
 0.53 2015-09-25