Whispered event notifications

[MrLotU]

Have a whispered message sent to the streamer when someone leaves or joins the channel.

[2Cubed]

Maybe for all notifications? 🙂

[MrLotU]

What other notifications are there?

[MrLotU]

But yeah, might be handy for all notifications

[Innectic]

Added api, because we'd want this to be configurable