added whole system from ola4doc

sys/node_modules/es5-ext/math/trunc/shim.js

@@ -0,0 +1,13 @@
+'use strict';
+
+var floor = Math.floor;
+
+module.exports = function (x) {
+	if (isNaN(x)) return NaN;
+	x = Number(x);
+	if (x === 0) return x;
+	if (x === Infinity) return Infinity;
+	if (x === -Infinity) return -Infinity;
+	if (x > 0) return floor(x);
+	return -floor(-x);
+};