Close on 'Esc' key press?

[joshgillies]

I'm wondering whether adding this feature to leanModal.js would be worthy?

I for one love being able to dismiss things that "popup" from webpages by attacking my Esc key, and am somewhat depressed that this isn't currently included in this project.

Given that supporting such a thing wont add too much to the code base (thus keeping the 'lean' approach to a modal intact), I for one feel as though it would be a worthy addition.

[pablfr]

Add this on line 30 :

                $(document).keydown(function(e) {
                if (e.keyCode == 27) {
                 close_modal(modal_id);
                }
                });