added whole system from ola4doc

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

@@ -0,0 +1,6 @@
+'use strict';
+
+if (!require('./is-implemented')()) {
+	Object.defineProperty(Math, 'trunc', { value: require('./shim'),
+		configurable: true, enumerable: false, writable: true });
+}

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

@@ -0,0 +1,5 @@
+'use strict';
+
+module.exports = require('./is-implemented')()
+	? Math.trunc
+	: require('./shim');

sys/node_modules/es5-ext/math/trunc/is-implemented.js

@@ -0,0 +1,7 @@
+'use strict';
+
+module.exports = function () {
+	var trunc = Math.trunc;
+	if (typeof trunc !== 'function') return false;
+	return (trunc(13.67) === 13) && (trunc(-13.67) === -13);
+};

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);
+};