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/ReportRunner.java
protected long pageNumber = -1;
	/**
	 * engine used to execute the tasks.
	 */
	private IReportEngine engine;
	/**
	 * Constructor of ReportRunner
	 * 
	 * @param args -
	 *            application arguments
	 */
	protected ReportRunner( String[] args )
	{
		this.args = (String[]) args.clone( );
	}
	/**
	 * Main function.
	 * 
	 * @param args -
	 *            application argumetns.
	 */
	public static void main( String[] args )
	{
		int result = new ReportRunner( args ).execute( );
		System.exit( result );
	}
	/**
	 * Check if the arguments are valid. If yes, continue to execuate the
	 * report. If no, simply return.
	 */