aw.changefunnel - A Sensitive Funnel, for Sensitive Folk.

    This abstraction is like the bastard child of [change] and [listfunnel].
    Input: list Output: index + value of the changed values from the list.
    Make sense?
    VERY useful for filtering out repeated values from midi streams and other bottlenecks. It's probably been done before, but this is my version, dang it! :)