Use 2 spaces, as is standard in Angular and Node

[stevenharman]

This might be controversial, but it seems idiomatic in both the Angular and Node code bases, and it makes it easier for me to contribute as my Vim settings expect 2-spaces for JavaScript/CoffeeScript. :)

[stevenharman]

Please don't feel compelled to accept this if it rubs you wrong - I just thought I'd put it out there, just in case. :wink:

[a-c-m]

I like it. Does seem to be the way most people work.

Supporting documentation :

• http://nodeguide.com/style.html#tabs-vs-spaces
• http://tschaub.net/blog/2013/12/04/angularjs-whitespace-guide.html