Dispose graphics object in BufferedImageBuilder
Optimized BlockTileWorldRenderer
Optimized BlockTileWorldRenderer (2)
Merge branch 'master' of github.com:msteiger/FacadeAWT

Conflicts:
	src/main/java/org/terasology/awt/world/renderer/BlockTileWorldRenderer.java
Extends produced chunks to fill screen

Fixes #5
Added image
Added bluegoo icon set
Fixed alpha blending bugfix (wrong stack level)
Merge pull request #6 from msteiger/master

Optimized BlockTileWorldRenderer