Preparing to release hadoop-2.4.1.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1602886 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10657. Have RetryInvocationHandler log failover attempt at INFO level. Contributed by Ming Ma.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1602941 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10683. Users authenticated with KERBEROS are recorded as being authenticated with SIMPLE. Contributed by Benoy Antony.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1602991 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6539. test_native_mini_dfs is skipped in hadoop-hdfs pom.xml (decstery via cmccabe)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1602998 13f79535-47bb-0310-9956-ffa450edef68
YARN-2159. Better logging in SchedulerNode#allocateContainer. (Ray Chiang via kasha)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1603003 13f79535-47bb-0310-9956-ffa450edef68