Bug 175587 Consolidate IReportEngine.shutdown() and destroy() methods
Interface IReportEngine has two methods, shutdown() and destroy(), that appear to have identical functionality according to their JavaDoc comments. However as of 2.1.2 build destroy() is the method that actually cleans up the resources; shutdown() does not do anything useful. We need to do the following: (1) Deprecate method shutdown() (2) Make shutdown() call destroy() internally so that older code that uses that method can function properly.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/ReportEngine.java
* @throws EngineException
	 *             throwed when the input stream is null, or the stream does not
	 *             yield a valid report design
	 */
	public IReportRunnable openReportDesign( InputStream designStream )
			throws EngineException
	{
		logger.log( Level.FINE,
				"ReportEngine.openReportDesign: designStream={0} ", designStream );
		return helper.openReportDesign( designStream );
	}
	public IReportRunnable openReportDesign( String name,
			InputStream designStream ) throws EngineException
	{
		logger.log( Level.FINE,
				"ReportEngine.openReportDesign: name={0}, designStream={1} ", 
				new Object[] {name, designStream} );
		return helper.openReportDesign( name, designStream );
	}
	/**
	 * creates an engine task for running and rendering report directly to
	 * output format
	 * 
	 * @param reportRunnable
	 *            the runnable report design object
	 * @return a run and render report task
	 */
	public IRunAndRenderTask createRunAndRenderTask(
			IReportRunnable reportRunnable )
	{