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/IReportEngine.java
throws EngineException;
	public IReportDocument openReportDocument( String fileName,
			IResourceLocator locator ) throws EngineException;
	/**
	 * opens a report document and returns an IReportDocument object, from which
	 * further information can be retrieved.
	 * 
	 * @param systemId
	 *            the system id the opend document. It is used to access the resources with
	 *            relative path in the report document. If it is NULL, a saved one is used.
	 * @param fileName
	 *            the report document name. report document is an archive in
	 *            BIRT.
	 * @return A handle to the report document
	 * @throws EngineException
	 *             throwed when the report document archive does not exist, or
	 *             the file is not a valud report document
	 */
	public IReportDocument openReportDocument( String systemId,
			String fileName ) throws EngineException;
	public IReportDocument openReportDocument( String systemId,
			String fileName, IResourceLocator locator ) throws EngineException;
	/**
	 * opens a report document and returns an IReportDocument object, from which
	 * further information can be retrieved.
	 * 
	 * @param systemId
	 *            the system id the opend document. It is used to access the resources with
	 *            relative path in the report document. If it is NULL, a saved one is used.
	 * @param fileName