AI and model stuff
Model
Bloody derps
Merge branch 'master' of https://github.com/17marijn71/OOP-Final-Project
Rollback
NextPlayer weg
Shit seems to kinda work
Print model on command line
Merge branch 'master' of https://github.com/17marijn71/OOP-Final-Project

Conflicts:
	src/connectfour/model/GameModel.java
Very basic Advanced-game functionality built

Only possible to add players and give them(while adding) a Color.
Not possible to remove players
Made sure that the model activates an AI player when starting the Model