eslint/eslint — pull request #640 by iancmyers (2014-02-26 00:58:34+00:00)
Title: Created space-in-brackets rule

Created the `space-in-brackets` rule, which enforces spacing
preferences within brackets:

var arr = [ 'foo', 'bar' ];
foo[ 'bar' ];

var arr = ['foo', 'bar'];
foo['bar'];

The rule takes one option, a string, which may be either "always"
or "never".

Fixes #631