Update old CoffeeScript package

[cryptoquick]

I'm using a CoffeeScript module that's loaded by Grunt, in a Gruntfile. It's using a very old version of CoffeeScript, version 1.3.3, which has an issue with the following syntax:

data =
      site: _.where feed.index, {id}

Namely, the comma interferes with destructuring somehow. I don't know in what version of CoffeeScript this was fixed, but CoffeeLint agrees with my code.

It'd be nice if CoffeeScript could be updated at some point.

[vladikoff]

#911