Cleaned up the language stuffs, added comments
Added override comments
Transfer Laptop-Desktop
Merge branch 'master' into marijn-dev

Conflicts:
	src/connectfour/model/Model.java
Fixed merge problems
Moved Players to their own package
Merge branch 'master' into marijn-dev
Added a file for a TODO-list
Changed TODO's and commented out GamePanel for testing new functionality
Created a NewGameDialog
Merge branch 'master' into marijn-dev
Merge branch 'master' into marijn-dev

Conflicts:
	src/connectfour/ConnectFour.java
Test works, added Visual test, works.

Added nullchecks to the Model since a .equal() check cannot be performed on an empty cell