HADOOP-9124. SortedMapWritable violates contract of Map interface for equals() and hashCode(). Contributed by Surenkumar Nihalani

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1@1443395 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9253. Capture ulimit info in the logs at service start time. Contributed by Arpit Gupta.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1@1443525 13f79535-47bb-0310-9956-ffa450edef68