HDFS-5406. Send incremental block reports for all storages in a single call.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1551093 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5406. Add file missed in previous commit.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1551110 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5592. statechangeLog of completeFile should be logged only in case of success. Contributed by Vinay.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1551145 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch: upstream/trunk