Added JS docs

lib/scheduler.js

@@ -836,6 +836,9 @@ Scheduler.prototype.getRunningTasks = function () {
 
 };
 
+/**
+ * Synchronize the tasks of this scheduler.
+ */
 Scheduler.prototype.sync = function () {
     var self = this;
     for (var i = 0; i < self.reconcileTasks.length; i++) {

lib/taskHelper.js

@@ -1,5 +1,10 @@
 "use strict";
 
+/**
+ * Represents a TaskHelper object
+ * @constructor
+ * @param {object} scheduler - The scheduler object.
+ */
 function TaskHelper(scheduler) {
     if (!(this instanceof TaskHelper)) {
         return new TaskHelper(scheduler);
@@ -11,6 +16,9 @@ function TaskHelper(scheduler) {
     self.zkServicePath = self.scheduler.zkServicePath;
 }
 
+/**
+ * Load the task nodes belonging to the framework from ZooKeeper.
+ */
 TaskHelper.prototype.loadTasks = function() {
     var self = this;
     self.zkClient.getChildren(self.zkServicePath + "/tasks", function (error, children, stat) {
@@ -78,7 +86,10 @@ TaskHelper.prototype.loadTasks = function() {
     });
 };
 
-
+/**
+ * Save task nodes from ZooKeeper.
+ * @param {object} task - The task object which should be persisted to ZooKeeper.
+ */
 TaskHelper.prototype.saveTask = function (task) {
     var self = this;
     var data = Buffer(JSON.stringify(task));
@@ -98,6 +109,10 @@ TaskHelper.prototype.saveTask = function (task) {
     });
 };
 
+/**
+ * Delete task nodes from ZooKeeper.
+ * @param {string} taskId - The id of the task which should be deleted from ZooKeeper.
+ */
 TaskHelper.prototype.deleteTask = function (taskId) {
     var self = this;
     self.zkClient.remove(self.zkServicePath + "/tasks/" + taskId, function (error) {