Fix for older mouse scrollwheels

[ryanturnerwebdev]

Changed delta operator to ‘less than or equal to’ for scrollwheels that
don’t change delta on small scrolls

[alvarotrigo]

An else should be enough.
But in any case, have you checked this solves your problem?

[alvarotrigo]

fullPage.js uses:

                        if (delta < 0) {
                            scrolling('down', scrollable);

                        //scrolling up?
                        }else {
                            scrolling('up', scrollable);
                        }

And you probably don't have any issue there.
So not quite sure if the problem is there in any case.

[ryanturnerwebdev]

Yes this solves the issue I was having. Pushed new commit to as suggested.