Rename STYLEGUIDE to HACKING because that's what it is!
Do not create an empty file if image saving fails
Scale Gosu::Window down to [NSScreen mainScreen].visibleFrame only
Formatting trööt
Fix Rakefile incompatibility with Ruby 1.9/Rubinius
Fix #136
Another terrible hack to keep Ruby/Gosu from crashing on OS X (compiler bug?)
Merge branch 'refs/heads/master' into multi-gamepad-experimental