-# Functionality:
-On Game page "mconnect" events =>
- send lastate to them (because they have the game infos) or just "your turn" - if their turn
- remember them to send next "newmove" (or just "it's your turn") later - if not their turn
- (=> listen for "mdisconnect" as well)
-From MyGames page: send "mconnect" to all online players (me included: potential multi-tabs)
- When quit, send mdisconnect (relayed by server if no other MyGames tab).
-And remove current "notify through newmove" on server in sockets.js