YARN-1450. Fixed test failure in TestUnmanagedAMLauncher by removing its dependency on distributed-shell. Contributed by Binglin Chang.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1548619 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5312. Generate HTTP/HTTPS URL in DFSUtil#getInfoServer() based on the configured http policy. Contributed by Haohui Mai.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1548629 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10142. Avoid groups lookup for unprivileged users such as dr.who (vinay via cmccabe)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1548763 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch: upstream/trunk