HDFS-6173. Move the default processor from Ls to Web in OfflineImageViewer. Contributed by Akira Ajisaka.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1583384 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10451. Remove unused field and imports from SaslRpcServer. Contributed by Benoy Antony.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1583393 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10345. Sanitize the the inputs (groups and hosts) for the proxyuser configuration. Contributed by Benoy Antony.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1583454 13f79535-47bb-0310-9956-ffa450edef68