Crash

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Crash

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Fix crash and background
Merge branch 'Crash'

* Crash:
  Fix crash and background
  Crash
  Crash

Conflicts:
	Game/src/game/Engine.java
	Game/src/game/Main.java
	Game/src/game/MovablePanel.java
	Game/src/game/Shared.java
	Game/src/game/Ship.java
	Game/src/game/invader/Invader.java
	Game/src/game/space/Space.java