Update the layout version for federation changes
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Key: HDFS-1737
URL: https://issues.apache.org/jira/browse/HDFS-1737
Project: Hadoop HDFS
Issue Type: Sub-task
Components: data-node, name-node
Affects Versions: Federation Branch
Reporter: Suresh Srinivas
Assignee: Suresh Srinivas
Fix For: Federation Branch
Layout version needs to be bumped up for federation changes.
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