Update notes for submitted changes

* GC: Remove empty references folders

93/654f75a25d9af193731a97d2db675f57cc86bb

@@ -0,0 +1,7 @@
+Code-Review+2: Matthias Sohn <matthias.sohn@sap.com>
+Verified+1: Hudson CI
+Submitted-by: Matthias Sohn <matthias.sohn@sap.com>
+Submitted-at: Wed, 07 Feb 2018 19:40:56 -0500
+Reviewed-on: https://git.eclipse.org/r/116788
+Project: jgit/jgit
+Branch: refs/heads/master