Dodanie ekranow do struktury
Rozroznienie na creatures i objects
Merge branch 'pawel' into michal
Kilka malych poprawek
Merge branch 'master' into pawel

Conflicts:
	GameMakerEditor/src/gui/EditorFrame.java
	GameMakerEditor/src/gui/EditorGameView.java
	GameMakerEditor/src/gui/gameview/MouseInputGameView.java
Zmienione dodawanie (teraz na 2x click)