Matrix server channel setup

[mattdm (Matthew Miller)]

@ngompa

Please do not make bridging optional for #fedora- channels. They should be mapped to rooms in our Matrix server. If they want to exist on IRC, they must be plumbed through to Matrix. Obviously, Matrix only rooms are fine, too.

Well, I guess my thinking is that this is a chance to clean up channels that aren’t really used very much. I guess we could remove them from Freenode too?