added whole system from ola4doc

sys/node_modules/es5-ext/string/#/contains/implement.js

@@ -0,0 +1,7 @@
+'use strict';
+
+if (!require('./is-implemented')()) {
+	Object.defineProperty(String.prototype, 'contains',
+		{ value: require('./shim'), configurable: true, enumerable: false,
+			writable: true });
+}

sys/node_modules/es5-ext/string/#/contains/index.js

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

sys/node_modules/es5-ext/string/#/contains/is-implemented.js

@@ -0,0 +1,8 @@
+'use strict';
+
+var str = 'razdwatrzy';
+
+module.exports = function () {
+	if (typeof str.contains !== 'function') return false;
+	return ((str.contains('dwa') === true) && (str.contains('foo') === false));
+};

sys/node_modules/es5-ext/string/#/contains/shim.js

@@ -0,0 +1,7 @@
+'use strict';
+
+var indexOf = String.prototype.indexOf;
+
+module.exports = function (searchString/*, position*/) {
+	return indexOf.call(this, searchString, arguments[1]) > -1;
+};