HDFS-5520. loading cache path directives from edit log doesnt update nextEntryId (cmccabe)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1543286 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5512. CacheAdmin -listPools fails with NPE when user lacks permissions to view all pools (awang via cmccabe)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1543293 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5073. TestListCorruptFileBlocks fails intermittently.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1543303 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd
Merge remote branch 'origin/trunk-gd' into fb-xxx-hadoop-auth-kerberos-realm-trunk-gd