Bubble reset collection event to change:association

[sobrinho]

What do you guys think about bubbling the collection reset event to the model?

invoice.get("items").reset(items)

Fires the pseudo code:

invoice.trigger("change:items")

[sobrinho]

I can make a PR implementing if you agree :)

[vicentemundim]

That would be great! But wouldn't it make sense to also bubble other events?

For example, when adding or removing the change:items event should also be triggered.

[sobrinho]

@vicentemundim these events already bubbles, see here

[vassilevsky]

I need this in production right now :)