update javascript connection manager to latest feature set

dashboard-ui/thirdparty/apiclient/deferred.js

@@ -0,0 +1,16 @@
+(function (globalScope) {
+
+    globalScope.Deferred = {
+
+        Deferred: function () {
+            return jQuery.Deferred();
+        },
+
+        when: function (promises) {
+
+            return jQuery.when(promises);
+        }
+
+    };
+
+})(window);