Merge branch 'master' into LevelEditor

bin/de/bricked/main/_de.properties

bin/de/bricked/ui/LevelGUI.fxml

bin/de/brickedleveleditor/main/_de.properties

bin/de/brickedleveleditor/ui/GUI.fxml

src/de/bricked/game/Game.java

src/de/bricked/game/powerups/ExtraLifePowerUp.java

src/de/bricked/game/powerups/PowerUpType.java

src/de/bricked/game/powerups/ball/ExplodeBallPowerUp.java

...de/bricked/game/powerups/ball/NoCollisionBallPowerUp.java

src/de/bricked/main/_de.properties

src/de/bricked/ui/LevelController.java

src/de/bricked/ui/LevelGUI.fxml

src/de/bricked/utils/CountdownTimer.java

src/de/brickedleveleditor/ui/BrickLabel.java

src/de/brickedleveleditor/ui/controller/MainController.java