TODO:

- change ConnectionManager clientlist [done]
- change gamestatemanager clientlist [done]
- put them together into ClientInformation [done]

- do better gamestate-update/snapshot-handling [partially done]
- integrate ClientInformation into gamestatemanager [done]

- write dummyserver and dummyclient (chat system) [done]

- include GameStateClient into Client and write processGamestate (also packetdecoder (virtual))
- create object with worldentity .....

- try and error ;)