Based on:
- https://github.com/mathiasbynens/dotfiles
- https://github.com/holman/dotfiles
- https://github.com/necolas/dotfiles
- https://github.com/cowboy/dotfiles
- Use PCKeyboardHack to remap the escape key to the caps lock key.