Update replication plugin to latest revision

- Add method onRefReplicatedToAllNodes to PushResultProcessing
- Add missing easymock dependency

Change-Id: I44eafd98b22591e1bbf0ba87b2b15e52a15dfb1f
diff --git a/plugins/replication b/plugins/replication
index 6cb2938..c126e78 160000
--- a/plugins/replication
+++ b/plugins/replication
@@ -1 +1 @@
-Subproject commit 6cb293834907a7c059aa05168646ebc9f6b68c5a
+Subproject commit c126e78886cd985edddee66ad1aba0130a4a5819