Fulfill Bundler's hopes and dreams

Bundler doesn't like loading the top-level file unless the file name
matches the gem name.
Merge pull request #13 from 25-ventures/bug/silly-ruby-require-names

Fulfill Bundler's hopes and dreams
Improve support for OAuth for GitHub

- Add an optional scope parameter to the services oauth method
- Add a scope to the GitHub integration
- Add the omniauth-github gem to the gemspec