Bug 152834 support HTML description of the template
The template descrition is a fragment of HTML, use that fragment to render the template in HTML.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/presentation/LocalizedContentVisitor.java
String helpText = localize( label, label.getHelpKey( ), label.getHelpText( ) );
		label.setHelpText( helpText );
		String text = localize( label, label.getLabelKey( ), label.getLabelText( ) );
		label.setText( text );
	}
	public Object visitText( ITextContent text, Object value )
	{
		TextItemScriptExecutor.handleOnRender( text, context );
		return value;
	}
	/**
	 * handle the foreign content object.
	 * 
	 * Foreign content can be created by following design element:
	 * <li> Text(HTML). It will create a TEMPLATE_TYPE foreign object.
	 * <li> MultiLine(HTML). It will create a HTML_TYPE forign object
	 * <li> MultiLine(PlainText).It will create a TEXT_TYPE foreign object
	 * <li> Extended item. It will create a
	 * TEXT_TYPE/HTML_TYPE/IMAGE_TYPE/VALUE_TYPE foreign object.
	 * 
	 */
	public Object visitForeign( IForeignContent foreignContent, Object value )
	{
		IReportContent reportContent = getReportContent( );
		
		String rawFormat = foreignContent.getRawType( );
		Object rawValue = foreignContent.getRawValue( );
		if ( IForeignContent.TEMPLATE_TYPE.equals( rawFormat ) )
		{
			TextItemScriptExecutor.handleOnRender( foreignContent, context );