MatthewMueller/array — pull request #22 by Swatinem (2014-01-21 10:05:56+00:00)
Title: Emit `change` events when mutating the array

There are some cases where I’m interested in whether the array changed
at all, not any specifics. In those cases I also don’t want to get
multiple events for operations that add/remove multiple elements in one
go.