Index: frontend/node_modules/async/parallelLimit.js
===================================================================
--- frontend/node_modules/async/parallelLimit.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/async/parallelLimit.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,41 @@
+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+exports.default = parallelLimit;
+
+var _eachOfLimit = require('./internal/eachOfLimit.js');
+
+var _eachOfLimit2 = _interopRequireDefault(_eachOfLimit);
+
+var _parallel = require('./internal/parallel.js');
+
+var _parallel2 = _interopRequireDefault(_parallel);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * The same as [`parallel`]{@link module:ControlFlow.parallel} but runs a maximum of `limit` async operations at a
+ * time.
+ *
+ * @name parallelLimit
+ * @static
+ * @memberOf module:ControlFlow
+ * @method
+ * @see [async.parallel]{@link module:ControlFlow.parallel}
+ * @category Control Flow
+ * @param {Array|Iterable|AsyncIterable|Object} tasks - A collection of
+ * [async functions]{@link AsyncFunction} to run.
+ * Each async function can complete with any number of optional `result` values.
+ * @param {number} limit - The maximum number of async operations at a time.
+ * @param {Function} [callback] - An optional callback to run once all the
+ * functions have completed successfully. This function gets a results array
+ * (or object) containing all the result arguments passed to the task callbacks.
+ * Invoked with (err, results).
+ * @returns {Promise} a promise, if a callback is not passed
+ */
+function parallelLimit(tasks, limit, callback) {
+    return (0, _parallel2.default)((0, _eachOfLimit2.default)(limit), tasks, callback);
+}
+module.exports = exports.default;