make sure exceptions are properly transported by a "Catch All" in the play method rethrowing as a WebApplicationException.
Changed something about the boards (like only Users are allowed to post now).
Also checked something about a NullPointerExceptiojn, but cannot reproduce it now.
/* expand title size */
created a new stateless session bean (EJB) to handle running a command and providing itself, so we can have access to beans from inside commands.
/* Creation of a CommandCreator that creates new instances of commands, based on the command entered by the player.
These new commands are provided with the CommandRunner bean, so they have full access to beans. */