Update notes for submitted changes

* Let RefDirectory use FileSnapShot to handle fast updates

23/02a6d3ceea2926e785dba57abd58f609684e86

@@ -0,0 +1,9 @@
+Code-Review+2: Chris Aniszczyk <caniszczyk@gmail.com>
+IP-Clean+1: Chris Aniszczyk <caniszczyk@gmail.com>
+Verified+1: Chris Aniszczyk <caniszczyk@gmail.com>
+Verified+1: Hudson CI
+Submitted-by: Chris Aniszczyk <caniszczyk@gmail.com>
+Submitted-at: Wed, 25 May 2011 09:46:49 -0400
+Reviewed-on: http://egit.eclipse.org/r/3481
+Project: jgit
+Branch: refs/heads/master