Bug 177693 Support Date/Time data type in BIRT report engine.
Report engine needs to support new BIRT data type Date/Time. Please see attached for details.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/ReportRunner.java
* the output locale, used in Run and RunAndRender modes.
	 */
	protected String locale = "en"; 
	/**
	 * the output format, used in Render and RunAndRender.
	 */
	protected String format = "html"; 
	/**
	 * used to decorate the HTML output, used in Render and RunAndRender mode.
	 */
	protected String htmlType = "HTML"; 
	/**
	 * the output encoding, used in html format in Render and RunAndRender
	 * modes.
	 */
	protected String encoding = "utf-8"; 
	/**
	 * paramters used to execute the report, used in Run and RunAndRender modes.
	 */
	protected HashMap params = new HashMap( ); 
	/**
	 * output page number, used in Render mode.
	 */
	protected long pageNumber = -1;
	/**
	 * engine used to execute the tasks.
	 */
	private IReportEngine engine;
	/**
	 * Constructor of ReportRunner