Bug 188578 Add "displayColumnName" on TabularLevel
Add Property "displayColumnName" on TabbularLevel and corresponding APIs on handle. Property Type: expression.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/writer/ModuleWriter.java
property( obj, ILineItemModel.ORIENTATION_PROP );
		writer.endElement( );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.design.elements.DesignVisitor#visitGraphicMasterPage(org.eclipse.birt.report.model.design.elements.GraphicMasterPage)
	 */
	public void visitGraphicMasterPage( GraphicMasterPage obj )
	{
		writer.startElement( DesignSchemaConstants.GRAPHIC_MASTER_PAGE_TAG );
		super.visitGraphicMasterPage( obj );
		property( obj, IGraphicMaterPageModel.COLUMNS_PROP );
		property( obj, IGraphicMaterPageModel.COLUMN_SPACING_PROP );
		writeContents( obj, IGraphicMaterPageModel.CONTENT_SLOT,
				DesignSchemaConstants.CONTENTS_TAG );
		writer.endElement( );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.design.elements.DesignVisitor#visitSimpleMasterPage(org.eclipse.birt.report.model.design.elements.SimpleMasterPage)
	 */
	public void visitSimpleMasterPage( SimpleMasterPage obj )
	{
		writer.startElement( DesignSchemaConstants.SIMPLE_MASTER_PAGE_TAG );
		super.visitSimpleMasterPage( obj );
		property( obj, ISimpleMasterPageModel.SHOW_HEADER_ON_FIRST_PROP );
		property( obj, ISimpleMasterPageModel.SHOW_FOOTER_ON_LAST_PROP );
		property( obj, ISimpleMasterPageModel.FLOATING_FOOTER );