- changed method parameters in class Updater for evolve(), movePlayer(),
moveRobots from "int" to "long"
- Added methods createNewTarget(), holdGame(), continueGame() to class
RobotzControl; refactored setRobotzView(); minor JavaDoc stuff.
- removed evolve() and all methods concerning motion and checking from
class Updater().
- changed Ctor of class Updater to include parameter for Control object.
- added method changeGameState() to class Arena for permitting only
specific state changes, depending on the current gamestate.
- moved method changeGameState() from class Arena to class RobotzControl
- refactored class RobotzControl, added several methods for checks and
movement, including changeGameState() (former Data-package method).
- minor stuff.