HADOOP-10625. Trim configuration names when putting/getting them to properties

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1598072 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6442. Fix TestEditLogAutoroll and TestStandbyCheckpoints failure caused by port conficts. (Contributed by Zesheng Wu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1598078 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6448. BlockReaderLocalLegacy should set socket timeout based on conf.socketTimeout (liangxie via cmccabe)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1598079 13f79535-47bb-0310-9956-ffa450edef68