Added Bot (the artifical counterpart to HumanPlayer)
Added ArtificialController, the baseclass of all non-human-controllers
Added AIController, a simple reimplementation of the old AISpaceShip (but of course without the SpaceShip, just the AI)
Added currently empty class ScriptController
Some tweaks in PlayerInfo, ControllableEntity and Controller
Made Spacetator speed configurable
I don't know where, but there's still an issue in the new code, maybe even caused by the previous commit. The Server seems to crash when a Client disconnects, but only if the Server runs within the debugger.