Fixed case insensitivity in filters

Change-Id: I702734c9884a17f09ddfb4f9677b85f0eea2681b
diff --git a/Changes b/Changes
index 9a7ca91..1bf1d78 100644
--- a/Changes
+++ b/Changes
@@ -25,6 +25,7 @@
 	  parsing failures (diewald)
 	- [feature] Support '@all' as a 'fields' value for all meta
 	  data fields (diewald)
+	- [bugfix] Fix case sensitivity bug in filters (diewald)
 
 0.51 2015-03-17
         - This is a major version (prepared for the GitHub release)