Merge branch 'beta'

js/Desktop/DeskTop.js

@@ -7017,6 +7017,7 @@ U.MD.D.I.openApplication = function (str, obj, info) {
                 closecallback: function () { }
             }, { "style": { "height": "36px" } }).form; //创建窗体
             _taskbar = { "id": str + _formdiv.id, "style": { "backgroundImage": "url(/img/icon/classroomObservation.png)" }, "name": "课堂观察", "forms": _formdiv, "click": function () { U.MD.D.I.openApplication(str, obj, info); } }
+            $("iframe", _formdiv)[0].contentWindow.location.reload()
             break;
         case "pblCourse":
                 _formdiv = new U.UF.UI.form(