Some minor tweaks to spacing about backbone-fundamentals

[addyosmani]

@JustinDrake Very useful. Thanks so much for putting these together.

I'll focus on getting as many of the items on your list addressed for tomorrow's round of updates as possible. I don't believe there's anything here that I disagree with at all.

[addyosmani]

@JustinDrake

I've made some updates to cover 1, 2, 3, 4, 5, 7 and 8.

In terms of 6, I think you make a valid point about spacing. I was considering following the jQuery style guidelines for general spacing across most of the book (which would require a further update), however I'm not sure how well this balances with how most Backbone developers style their code.

For reference, here's the style guide: http://docs.jquery.com/JQuery_Core_Style_Guidelines

[addyosmani]

(updated the issue title to reflect changes, let me know if further work is required on any). Thanks!

[addyosmani]

Closing for now. A style guide for the book is being worked on and will be getting applied in mid Feb.