0.1.2 Release

Hi, been a minute. I've been working on 0.2.0 for a while now, but it still isn't finished, so I decided just to release what's done so far.

Major things added in this patch:

• Background music/ambience
• Physics objects
• Animated objects
• More detail to Desert
• More post-processing tweaks
• Significant performance decrease (woops)

0.2.0 is planned to release with a main menu and more optimization.