Removal zones (only visuals).
Merge branch 'master' of https://github.com/Mortymus/Blocks3D.git

Conflicts:
	Blocks3D/src/de/blocks/graphics/Blocks3DGraphics.java
	Blocks3D/src/de/blocks/logic/Block.java
	Blocks3D/src/de/blocks/logic/BlocksGame.java
	Blocks3D/src/de/blocks/logic/GameField.java
	Blocks3D/src/de/blocks/logic/Object3D.java
	Blocks3D/src/de/blocks/logic/Square.java