updating documentation for 0.3

documentation/js/fat_arrow.js

@@ -0,0 +1,17 @@
+(function(){
+  var Account;
+  Account = function Account(customer, cart) {
+    var __a;
+    this.customer = customer;
+    this.cart = cart;
+    __a = $('.shopping_cart').bind('click', (function(__this) {
+      var __func = function(event) {
+        return this.customer.purchase(this.cart);
+      };
+      return (function() {
+        return __func.apply(__this, arguments);
+      });
+    })(this));
+    return Account === this.constructor ? this : __a;
+  };
+})();