Bug 178164 Use IEngineTask.status constants and remove unnecessary status variables in EngineTask.
1)Remove following redundant variables in EngineTask used for status info. protected final int RUNNING_STATUS_START = 0; protected final int RUNNING_STATUS_RUNNING = 1; protected final int RUNNING_STATUS_STOP = 2; EngineTask already has access to constants declared in IEngineTask. Use those instead. 2)Remove the unused errorHandlingOption in EngineTask.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/EngineTask.java
/**
	 * returns the object that encapsulates the context for running the task
	 * 
	 * @return Returns the context.
	 */
	public Map getAppContext( )
	{
		return executionContext.getAppContext( );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.api2.IEngineTask#getEngine()
	 */
	public IReportEngine getEngine( )
	{
		return engine;
	}
	public void setReportRunnable( IReportRunnable runnable )
	{
		if ( runnable != null )
		{
			this.runnable = runnable;
			executionContext.setRunnable( runnable );
			
			
			executionContext.registerBeans( System.getProperties( ) );
			executionContext.registerBeans( runnable.getTestConfig( ) );