Bug 182680 Use feature of new Aggregation framework of Data Engine.
DataEngine will implement new aggregation framework in 2.2.0RC0. After the implementation is finished Engine should go ahead to use new column bindings in definition of map/highlight.
engine/org.eclipse.birt.report.engine.tests/test/org/eclipse/birt/report/engine/data/dte/DataEngineTest.java
archReader = new FileArchiveReader( archivePath );
			archReader.open( );
			DataPresentationEngine dataPresEngine = new DataPresentationEngine(
					context, archReader );
			dataPresEngine.prepare( report, null );
			return dataPresEngine;
		}
		else
		{
			return null;
		}
	}
	protected String loadResource( String resourceName ) throws Exception
	{
		InputStream in = this.getClass( ).getResourceAsStream( resourceName );
		assertTrue( in != null );
		byte[] buffer = new byte[in.available( )];
		in.read( buffer );
		return new String( buffer );
	}
	private void delete( File dir )
	{
		if ( dir.isFile( ) )
		{
			dir.delete( );
		}
		if ( dir.isDirectory( ) )
		{
			File[] files = dir.listFiles( );
			for ( int i = 1; i < files.length; i++ )