HADOOP-2185 breaks compatibility with hadoop-0.15.0
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                 Key: HADOOP-2404
                 URL: https://issues.apache.org/jira/browse/HADOOP-2404
             Project: Hadoop
          Issue Type: Bug
          Components: conf
    Affects Versions: 0.16.0
            Reporter: Arun C Murthy
            Assignee: Konstantin Shvachko
            Priority: Blocker
             Fix For: 0.16.0


HADOOP-2185 removed the following configuration parameters:

{noformat}
dfs.secondary.info.port
dfs.datanode.port
dfs.info.port
mapred.job.tracker.info.port
tasktracker.http.port
{noformat}

and changed the following configuration parameters:
{noformat}
dfs.secondary.info.bindAddress
dfs.datanode.bindAddress
dfs.info.bindAddress
mapred.job.tracker.info.bindAddress
mapred.task.tracker.report.bindAddress
tasktracker.http.bindAddress
{noformat}

without a backward-compatibility story.

Lots are applications/cluster-configurations are prone to fail hence, we need a 
way to keep things working as-is for 0.16.0 and remove them for 0.17.0.

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