-# 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
-
-Analyse mode when launched from a position: should keep orientation
---> $route query param, "side=w or b"
-
-Subcursor (intra move) for multi-move variants for better navigation (in BaseGame)
-
-Allow symmetric mode in all variants (vertical symmetry for racing kings)
-flag in challenge, "Symmetric: true / false", option of GenRandInitFen()
-
-# Misc:
-Saw once a "double challenge" bug, one anonymous and a second one logged
-Both were asked a challenge probably, and both challenges added as different ones.
-