include node_modules so release .zip is deployable

node_modules/es5-ext/math/cosh/shim.js

@@ -0,0 +1,11 @@
+"use strict";
+
+var exp = Math.exp;
+
+module.exports = function (value) {
+	if (isNaN(value)) return NaN;
+	value = Number(value);
+	if (value === 0) return 1;
+	if (!isFinite(value)) return Infinity;
+	return (exp(value) + exp(-value)) / 2;
+};