Bug 154178 Support projectFolder in BIRT viewer
If the report supports projectFolder, the viewer also need to enhance for this feature.
viewer/org.eclipse.birt.report.viewer/src/org/eclipse/birt/report/viewer/utilities/WebViewer.java
* @param report
	 * @param format
	 * @param allowPage
	 */
	public static void display( String report, String format, boolean allowPage )
	{
		String root = null;
		if ( WebViewer.PDF.equalsIgnoreCase( format ) )
		{
			root = createURL( "run", report, format, true ); 
		}
		else
		{
			root = createURL(
					allowPage ? "frameset" : "run", report, format, true ) + "&" + new Random( ).nextInt( ); 
		}
		try
		{
			BrowserAccessor.getPreviewBrowser( false ).displayURL( root );
		}
		catch ( Exception e )
		{
			
		}
	}
	/**
	 * Displays the specified url useing eclipse SWT browser.
	 * 
	 * @param report
	 *            report report