Add logic to Always Route updates to all servers

This patch would allow updates to go to clients that may have
disconnected from one server and connected to a new server without the
socket connection fully timing out.

@kitcambridge r?
Actually, I'd prefer to avoid two locks on the client map per notification. We might need a more specialized path so that if its always route, we don't even check locally before calling it, otherwise we check it first. Course, there's still the lovely issue that the client might not be connected locally at the time this check is done, but after the time spent to do routing it could be.