Disable support for 2x-sized framebuffers when running on rtina displays.
Merge pull request #122 from mcteo/develop

Added collision mesh scaling.
Merge pull request #121 from DeVaukz/develop

Fix a bug with Sigma on retina macs.
Updated the README. #80
Merge pull request #123 from danix111/new_readme

Updated the README.
Removed some moldy code and fix indenting
Removed the GUI controller for this release