Updating changelog for rel 1.2.8

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1040725 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/eventadmin/impl/changelog.txt b/eventadmin/impl/changelog.txt
index 358a84c..dda8c3d 100644
--- a/eventadmin/impl/changelog.txt
+++ b/eventadmin/impl/changelog.txt
@@ -1,3 +1,10 @@
+Changes from 1.2.6 to 1.2.8
+---------------------------
+
+** Improvement
+    * [FELIX-2655] - allow event admin log level to be configurable
+
+
 Changes from 1.2.4 to 1.2.6
 ---------------------------