Add release notes for 1.2.0

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1348940 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/utils/doc/changelog.txt b/utils/doc/changelog.txt
index 042eaf9..eda0b48 100644
--- a/utils/doc/changelog.txt
+++ b/utils/doc/changelog.txt
@@ -1,3 +1,13 @@
+Changes from 1.1.4 to 1.2.0
+---------------------------
+
+** Improvement
+    * Variables are not preserved during write-back if they are
+      defined as framework properties
+
+** New features
+    * Add a BaseManagedServiceFactory to help writing such factories
+
 Changes from 1.1.2 to 1.1.0
 ---------------------------