Added text search functionality to collection builder

Change-Id: I16d45bb7651763e6f41857c0839962bd14a1f0af
diff --git a/Changes b/Changes
index 1ed8d2e..7ed178a 100644
--- a/Changes
+++ b/Changes
@@ -1,3 +1,6 @@
+0.57 2018-03-28
+        - [feature] Support text queries in metadata (diewald)
+
 0.56.2 2018-03-23
         - [feature] Introduce meta field retrieval method (diewald)
         - [cleanup] Rename KrillQuery's "_"-method to "nr" to improve