HADOOP-9242. Duplicate surefire plugin config in hadoop-common. Contributed by Andrey Klochkov.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1438213 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9245. mvn clean without running mvn install before fails. Contributed by Karthik Kambatla.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1438239 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch 'apache/trunk' into MAPREDUCE-4838
Fix the problem of null dataLocalHost input.