Implemented parallel task

BuildServer/lib/tasks/parallel.js

@@ -0,0 +1,17 @@
+"use strict";
+
+var async = require("async");
+
+module.exports = function (params, processor) {
+	return {
+		process: function () {
+			async.parallel(params.tasks.map(function (task) {
+				return function (callback) {
+					return processor.processTask(task, function (err) {
+						return callback();
+					})
+				}
+			}), processor.done.bind(processor));
+		}
+	};
+};