Release Version 0.1.0

There have been major features added to this release, most notably a working level and physics system.

Change-log

Major update! Implement physics engine
Major update! Implement level system
Major update! Add functional lava blocks, jump pad blocks and foreground + background blocks
Major update! Improvements to audio manager (Now can play different songs across scenes)
Add parallax background in levels
Add pause menu
Add about screen
Fixed options check-box not being in correct position