Prepare 1.6.1 release

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@768781 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/main/doc/changelog.txt b/main/doc/changelog.txt
index 3fb7901..a1ef056 100644
--- a/main/doc/changelog.txt
+++ b/main/doc/changelog.txt
@@ -1,3 +1,9 @@
+Changes from 1.6.0 to 1.6.1
+---------------------------
+
+** Improvement 
+   * Update to latest framework version 1.6.1
+
 Changes from 1.4.1 to 1.6.0
 ---------------------------