Please add option to use thousands separator

[lucasvieites]

Hi there, my personal use of this package is to count characters in a file, this number is often in the several thousand, which gets hard to read when there are no separators. Could you please add an option to define a "thousands separator"?

Kind regards, Lucas

[OleMchls]

I love the idea. but instead of adding yet another flip switch, what about we use one off the ends provided by the OS:

$~ env | grep en_US
LANG=en_US.UTF-8
LC_ALL=en_US.UTF-8

I'd love to see a PR for this

[lucasvieites]

I'll try and add that myself. I have never done anything in CoffeeScript before, so it will look sloppy.