Allow Export tool to choose subset of rows
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                 Key: HBASE-3255
                 URL: https://issues.apache.org/jira/browse/HBASE-3255
             Project: HBase
          Issue Type: Improvement
          Components: util
    Affects Versions: 0.20.6
            Reporter: Ted Yu


org.apache.hadoop.hbase.mapreduce.Export should allow user to specify a subset 
of rows.

This capability would help develop solution for problem which produces unwanted 
rows (in .META. table e.g.) that must be deleted.
One such case is https://issues.apache.org/jira/browse/HBASE-3251
We can export the dangling row(s) from .META., delete it and later import the 
row(s) to (another) hbase instance.

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