Fixed tests for infinite scroll
Fixed tests for infinite scroll

The behaviour has changed since I've refactored it. We now trigger the
callback exactly upon the scrollThreshold so you can set the threshold
to 1 and fire the callback at 100% page scroll. Obviously not possible
if the logic required you to scroll beyond 100%.

ox-it/moxie-js-client,ox-it/moxie-js-client,ox-it/moxie-js-client,ox-it/moxie-js-client