Only alert once on status notifications

(Because my previous pull request was really dumb.)

This helps quite a bit - I still don't really want to see these on my watch, but it prevents them from spamming it and pushing the notifications I really care about out of the queue. I haven't yet found a better way to do this.

As these notifications aren't meant to alert anyway, it doesn't seem like this has any effect on non-smartwatch users. Any objections?