Reduce friction proposed changes

- I've come around to the $: stuff really. It means that by requiring 'pathname' in jently.rb we won't have to require anywhere else.
- I've taken a quick swing at making things line up better to improve readability

Feel free to merge this into your code if you're happy with these changes and then add them to your pull request. If you have any comments yourself, feel free to add those as well :).