Merge branch 'stable-4.7' into stable-4.8

* stable-4.7:
  Fix ObjectUploadListener#close
  Fix error handling in FileLfsServlet
  ObjectDownloadListener#onWritePossible: Make code spec compatible
  ObjectDownloadListener: Return from onWritePossible when data is written
  Fix IOException when LockToken#close fails

Change-Id: Iad9836811be034cf992ea25dad4409addba75115
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>

diff --cc org.eclipse.jgit/src/org/eclipse/jgit/util/FS.java
Simple merge