Bug 150601 Drillthrough link from pdf(frameset) should link to frameset servlet instead of run.
Description: Drillthrough link from pdf(frameset) should link to frameset servlet instead of run. Steps to reproduce: 1. New a report 2. Insert a label and define a drill through link to other report 3. Preview in Web viewer, click Print as PDF button in viewer toolbar 4. Click drill through link in pdf Expected result: Target report opens through frameset sevlet instead of run servlet. Because the pdf is displayed through frameset servlet. Actual result: Target report opened through run sevlet
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
* @param imageId
	 * @param outputStream
	 * @throws RemoteException
	 */
	public void renderImage( String imageId, OutputStream outputStream )
			throws RemoteException
	{
		assert ( this.imageHandler != null );
		try
		{
			this.imageHandler.getImage( outputStream, this.imageDirectory,
					imageId );
		}
		catch ( EngineException e )
		{
			AxisFault fault = new AxisFault( e.getLocalizedMessage( ) );
			fault
					.setFaultCode( new QName(
							"ReportEngineService.renderImage( )" ) ); 
			fault.setFaultString( e.getLocalizedMessage( ) );
			throw fault;
		}
	}
	/**
	 * Create HTML render context.
	 * 
	 * @param svgFlag
	 * @param servletPath
	 * @return HTML render context from the given arguments
	 */