HDFS-4384. test_libhdfs_threaded gets SEGV if JNIEnv cannot be initialized. Contributed by Colin Patrick McCabe


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1432221 13f79535-47bb-0310-9956-ffa450edef68
Update CHANGES.txt to move HDFS-4328.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1432227 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-4921. JobClient should acquire HS token with RM principal (daryn via bobby)


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1432230 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'trunk' of github.com:griddynamics/yhadoop-common into trunk-gd
Merge branch 'trunk-gd' of github.com:griddynamics/yhadoop-common into fb-HADOOP-8849-trunk-gd