HDFS-5873. dfs.http.policy should have higher precedence over dfs.https.enable. Contributed by Haohui Mai.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1564973 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10325. Improve Jenkins Javadoc warnings from test-patch.sh (cmccabe)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1565010 13f79535-47bb-0310-9956-ffa450edef68