HDFS-4456. Add concat to HttpFS and WebHDFS REST API docs. (plamenj2003 via tucu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1441606 13f79535-47bb-0310-9956-ffa450edef68
svn merge -c 1441628 FIXES: HADOOP-9067. provide test for LocalFileSystem.reportChecksumFailure (Ivan A. Veselovsky via bobby)


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1441635 13f79535-47bb-0310-9956-ffa450edef68