Fixing CHANGES.txt entry for YARN-319.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1467133 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9471. Merged into 2.0.4-alpha. Fixing CHANGES.txt


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1467139 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-4985. Add compression option to TestDFSIO usage. Contributed by Plamen Jeliazkov.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1467145 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd