Bug 122419 Masterpage cannot access Data Set properties
If one references a data set property in the master page, i.e. row["title"], then the viewer displays only 'undefined'.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/data/dte/ReportQueryBuilder.java
{
			BaseQueryDefinition query = prepareVisit( image );
			handleReportItemExpressions( image );
			handleAction( image.getAction( ) );
			if ( image.getImageSource( ) == ImageItemDesign.IMAGE_EXPRESSION )
			{
				addExpression( image.getImageExpression( ) );
				addExpression( image.getImageFormat( ) );
			}
			else if ( image.getImageSource( ) == ImageItemDesign.IMAGE_URI
					|| image.getImageSource( ) == ImageItemDesign.IMAGE_FILE )
			{
				addExpression( image.getImageUri( ) );
			}
			finishVisit( query );
			return value;
		}
		/*
		 * (non-Javadoc)
		 * 
		 * @see org.eclipse.birt.report.engine.ir.ReportItemVisitor#visitLabelItem(org.eclipse.birt.report.engine.ir.LabelItemDesign)
		 */
		public Object visitLabelItem( LabelItemDesign label, Object value )
		{
			BaseQueryDefinition query = prepareVisit( label );
			handleReportItemExpressions( label );
			handleAction( label.getAction( ) );
			finishVisit( query );
			return value;
		}