Added option to reset the infinite loader

[arjanwestdorp]

When using the infinite scroll there is no ability to reset the scroll element. This can be useful when you are using the infinite scroll to show results based on filters.

1. If you apply filter A and scroll till the end the message no more data is shown.
2. But if you also apply filter B and start over again with the list then the "no more data" message is still being shown and the scroll don't work anymore. If you can fire the reset event it will 'reload' the infinite scroll element.

[PeachScript]

This is a really problem and I think most of the people will get it, thanks for your idea and PR!

And maybe execute scrollHandler after the reset logic is much better, if not, user must scroll manually to load more data after toggle filter, how do you think it?

[arjanwestdorp]

It is an option, although it's called reset so you expect it to be in the initial state. And then is the ScrollHandler also not called right?

[PeachScript]

You're very considerate, I will rethink the option that fire scrollHandler automatically and refactor code in stable version.

Thanks again :)