Added afterFling listener

[OpherV]

This enables users to be able to execute logic after the smoothScroll animation had ended

[Prinzhorn]

Your code doesn't work, you're executing _listeners.afterfling(direction) immediately.

[OpherV]

D'oh, you're right!

[Prinzhorn]

Apart from the issue I just commented on, I don't think this will work at all. When you touch the screen while an animation is running, then your listener will fire even though the user is still scrolling (

skrollr/src/skrollr.js

Line 739 in 1da1627

_instance.stopAnimateTo();

).

[OpherV]

The issue you pointed out is indeed a bug and I'll resolve it.
It's okay that the listener fires on touch, since it does so with the "stop animation" parameter set to true - so that case can be handled from within the user-specified done function