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

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1598070 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/branches/branch-2@1598080 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6442: Merging r1598078 from trunk to branch-2.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1598081 13f79535-47bb-0310-9956-ffa450edef68
YARN-2107. Refactored timeline classes into o.a.h.y.s.timeline package. Contributed by Vinod Kumar Vavilapalli.
svn merge --ignore-ancestry -c 1598094 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1598095 13f79535-47bb-0310-9956-ffa450edef68
svn merge -c 1598111 FIXES: MAPREDUCE-5862. Line records longer than 2x split size aren't handled correctly. Contributed by bc Wong


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1598115 13f79535-47bb-0310-9956-ffa450edef68