Update git submodules

* Update plugins/replication from branch 'stable-2.16'
  to b7a86cdca9eac3c0cb4292202c04788bf000ea51
  - Improve URLmatching to match real Urls
    
    Previously the UrlMatch string needed to match the templated value in
    the replication.config file, now it can additionally match a real URL
    with the project name already in it.
    
    Change-Id: Ib766f162a9f9106b7763ed26347b4639a9041d6d
    
diff --git a/plugins/replication b/plugins/replication
index 757521b..b7a86cd 160000
--- a/plugins/replication
+++ b/plugins/replication
@@ -1 +1 @@
-Subproject commit 757521bc5af9fa050c630bdb7693a1a5bf85d6ef
+Subproject commit b7a86cdca9eac3c0cb4292202c04788bf000ea51