HADOOP-8462. Native-code implementation of bzip2 codec. Contributed by Govind Kamat


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.23@1453611 13f79535-47bb-0310-9956-ffa450edef68
svn merge -c 1346192 merging from trunk to branch-0.23 to fix HDFS-3266.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.23@1453619 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9209. Add shell command to dump file checksums (Todd Lipcon via jeagles)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.23@1453625 13f79535-47bb-0310-9956-ffa450edef68
svn merge -c 1399965 Merging from trunk to branch-0.23 to fix HDFS-4072.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.23@1453626 13f79535-47bb-0310-9956-ffa450edef68
svn merge -c 1401423 Merging from trunk to branch-0.23 to fix HDFS-2434.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.23@1453627 13f79535-47bb-0310-9956-ffa450edef68
YARN-410. Fixed RM UI so that the new lines diagnostics for a failed app on the per-application page are translated to html line breaks. Contributed by Omkar Vinit Joshi


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Merge remote branch 'origin/branch-0.23' into branch-0.23-gd