Initial setup of Phantoman

- Sets up Phantoman as a composer project
- Adds instructions and information to the README
- Sets up the Phantoman class to adhere to
  [PSR-2](http://www.php-fig.org/psr/psr-2/) standards
- Adds [Editorconfig](http://editorconfig.org/) file to ensure proper
  editor settings are used on files.
:+1: Good catch.