TreadGaming Enclosure

**2015-11-24 Update**: I've been running on a loose X-axis belt for who knows how long. I tightened it, and updated the enclosure to reflect the otherwise loose PCB inside the enclosure. A nice side-effect of this change also means that the "lips" on the lid are thicker and doesn't break as easy any more. The v3 are the now updated versions of this.

**2015-05-21 Update**: Added treadgaming.scad (the source file that generates the .stl files) and treadman.stl (which is a file needed for the lo