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
{
			SlotHandle parameters = group.getParameters( );
			Iterator iter = parameters.iterator( );
			while ( iter.hasNext( ) )
			{
				Object param = iter.next( );
				if ( param instanceof CascadingParameterGroupHandle )
				{
					if ( !visitCascadingParamterGroup(
							(CascadingParameterGroupHandle) param, value ) )
					{
						return false;
					}
				}
				else if ( param instanceof ParameterGroupHandle )
				{
					if ( !visitParameterGroup( (ParameterGroupHandle) param,
							value ) )
					{
						return false;
					}
				}
				else if ( param instanceof ScalarParameterHandle )
				{
					if ( !visitScalarParameter( (ScalarParameterHandle) param,
							value ) )
					{
						return false;
					}
				}