added whole system from ola4doc

sys/node_modules/es5-ext/number/is-safe-integer/implement.js

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

sys/node_modules/es5-ext/number/is-safe-integer/index.js

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

sys/node_modules/es5-ext/number/is-safe-integer/is-implemented.js

@@ -0,0 +1,8 @@
+'use strict';
+
+module.exports = function () {
+	var isSafeInteger = Number.isSafeInteger;
+	if (typeof isSafeInteger !== 'function') return false;
+	return !isSafeInteger('23') && isSafeInteger(34232322323) &&
+			!isSafeInteger(9007199254740992);
+};

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

@@ -0,0 +1,11 @@
+'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;
+};