Remove Hadoop_ prefix from Hadoop Metrics Processor
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                 Key: CHUKWA-556
                 URL: https://issues.apache.org/jira/browse/CHUKWA-556
             Project: Chukwa
          Issue Type: Improvement
          Components: Data Processors
         Environment: Java 6, MacOSX 10.6
            Reporter: Eric Yang
            Assignee: Eric Yang


Both Chukwa and HBase uses MetricsContext to emite Hadoop metrics format.  
Therefore, it is possible to reuse the same HadoopMetricsProcessor class to 
process those metrics.  In HadoopMetricsProcessor is currently prepending 
Hadoop_ into the metrics field name.  This jira is to remove this prefix.  The 
DataType will be base on the user input type.  i.e. Hadoop, Chukwa, HBase, and 
column family or field name will be set to contextName of the MetricsContext.

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