Update notes for submitted changes

* Add public isStaleFileHandle() API, improve detection.

cb/08dd8b14bf4900c7974dd1ce5a3d553016585a

@@ -0,0 +1,7 @@
+Verified+1: Hudson CI
+Code-Review+2: Matthias Sohn <matthias.sohn@sap.com>
+Submitted-by: Matthias Sohn <matthias.sohn@sap.com>
+Submitted-at: Wed, 26 Aug 2015 16:16:28 -0400
+Reviewed-on: https://git.eclipse.org/r/54489
+Project: jgit/jgit
+Branch: refs/heads/master