Server throw an IllegalStateException sometimes on userHasExited event

[Damien Pellier]

Dans les log du server, de temps à autre l'erreur suivante apparaît.
Celle-ci suit toujours un event de type userHasExited.

2013-10-08 10:23:28.314     HTTPElevator http://localhost:3000/userHasExited
Exception in thread "pool-1-thread-2392" java.lang.IllegalStateException: when done, user have to wait at least one tick
    at elevator.server.Score.score(Score.java:30)
    at elevator.server.Score.success(Score.java:24)
    at elevator.server.ElevatorGame.onTick(ElevatorGame.java:89)
    at elevator.Clock$1.run(Clock.java:29)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:724)

[Sébastian Le Merdy]

Too bad automatic tests haven't seen this issue. Side effect of #13. Will be fixed soon. Thanks for reporting this.