[development] Update Notifications

[Khalid B]

> Do we really need to wait for 4.8?  Seems like we could do something like
> this *now* if we had the CVS side component.

There is a feature freeze on 4.7 in effect for sometime now.

Once this is released, then HEAD will open for features and this can go in
provided it passes reviews, ...etc. and  be on its way for 4.8 (or 5.0 as
the case may be).

Alternatively, you can make that a contrib module, then it can be released
with 4.7.