greetings plug
remove plug system, replace it with forwarders/sniffers & echos
everything's an echo
clean up existing game boot
show join form if no token found
register nickname with new token
send preregistered nickname
register & greetings
send join request
open join form on player:request
set playerColor on joined event
auto spectate game for game creator
reset token if expired
echo put:stone event
spectate from client for more coherence
update model on game:updated
Merge branch 'indexed-login'