include node_modules so release .zip is deployable

node_modules/es5-ext/number/is-safe-integer/shim.js

@@ -0,0 +1,10 @@
+"use strict";
+
+var isInteger = require("../is-integer/shim")
+  , maxValue  = require("../max-safe-integer")
+  , abs       = Math.abs;
+
+module.exports = function (value) {
+	if (!isInteger(value)) return false;
+	return abs(value) <= maxValue;
+};