In free mode, the GM panel display a list of the last rolls by players.
In turn mode, the GM panel display the list of players and their last for the turn (in red if they have not roll yet).

• When a GM click "new turn", an integer roundNumber is sent to the clients (roundNumberGM = roundNumberGM +1) and an annonce is made.
• The roundNumber for each game client increase to the roundNumberGM
• roundNumber +1 is sent with the next Roll action by the players
• on the GM pannel, if the roundNumber > roundNumberGM, the player name is in green. If not, it's in red.

Done!