Bug 131835 Clean up FO related code
Now that FO is not part of BIRT, clean up all references to FO, including the FORenderOption, TailoredForFOP, etc.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/EngineTask.java
public IRenderOption getRenderOption( )
	{
		return renderOptions;
	}
	public DataEngine getDataEngine( )
	{
		return executionContext.getDataEngine( ).getDataEngine( );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.api2.IEngineTask#addScriptableJavaObject(java.lang.String,
	 *      java.lang.Object)
	 */
	public void addScriptableJavaObject( String jsName, Object obj )
	{
		executionContext.registerBean( jsName, obj );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.api2.IEngineTask#getID()
	 */
	public int getID( )
	{
		return taskID;
	}
	protected Object convertToType( Object value, String type )
	{
		try