Enable emitting to single client in managers with to=...

[rustworthy]

Addresses #1375

[miguelgrinberg]

Thanks!

The problem here is that the managers expect the addressee of the message to be given in the room argument, which is an alias of to in the main server and client classes. For consistency, the to argument needs to be added in all manager subclasses, not just the one you fixed.

[rustworthy]

Thanks!

The problem here is that the managers expect the addressee of the message to be given in the room argument, which is an alias of to in the main server and client classes. For consistency, the to argument needs to be added in all manager subclasses, not just the one you fixed.

My pleasure!

Please see if I have identified all of them.

[miguelgrinberg]

Thanks!