Minecraft Engine Update 1 - Render Distance and Raycasting Improvements

Additions

• Added new block: Snow
• Added new starting biome: Snow
• Added Render Distance set to 768 pixels
• Added Render Distance (Change this using 4 & 6)
• Added Fog Distance
• Added Clipping Distance
• Added 'R' to restart the world

Changes

• Raycast block now has an outline.

Improvements

• Cleaned up raycasting code.