Made new structure with classes
Started work on a screen manager instead of a public enum Screen
Started to work on PropertyChanged
Made propertyChanged work for screen changes
Merge branch 'feature/repacking' into develop

Conflicts:
	desktop/src/main/java/edu/chalmers/sankoss/java/client/SankossClient.java
	desktop/src/main/java/edu/chalmers/sankoss/java/mainMenu/MainMenuScreen.java
	desktop/src/main/java/edu/chalmers/sankoss/java/placement/PlacementRenderer.java
	desktop/src/main/java/edu/chalmers/sankoss/java/placement/PlacementScreen.java