HADOOP-11353. Add support for .hadooprc (aw)
YARN-2917. Fixed potential deadlock when system.exit is called in AsyncDispatcher. Contributed by Rohith Sharmaks
HDFS-7515. Fix new findbugs warnings in hadoop-hdfs. Contributed by Haohui Mai.
HADOOP-11211. mapreduce.job.classloader.system.classes semantics should be order-independent. (Yitong Zhou via gera)