Added '@all' fields feature

Change-Id: Ib00c204676d65daa6a976104c3292923db5ece3e
diff --git a/Changes b/Changes
index 0f0ddee..9a7ca91 100644
--- a/Changes
+++ b/Changes
@@ -23,6 +23,8 @@
 	- [bugfix] Deserialization of wrapped spans (diewald)
 	- [bugfix] Fix KoralQuery mirroring in case of
 	  parsing failures (diewald)
+	- [feature] Support '@all' as a 'fields' value for all meta
+	  data fields (diewald)
 
 0.51 2015-03-17
         - This is a major version (prepared for the GitHub release)