Issue collection new server multiplayer mode - 1.5.2104

[X] Landscape mode for on screen gamepad and on screen buttons is distorted. Own gameboard must be centered
[X] Achievements for multiplayer should be granted for server multiplayer (Complete turnaround)
[X] Total scores should be added up
[X] Warning for slow connection should be improved (blinking with a warning, no dialog)
[X] Portrait mode: Opponent's name and his gameboard is hidden, so we need to bring back the highness level and opponent names level under the score
[X] Music should only play when game runs. Stop when game is ended and restart when new one starts
[X] Android: player leaves app without closing server connection -> connection should be closed after some seconds by client and server

MrStahlfelge / lightblocks