Add fake analysis node status endpoint

lib/cartodb/controllers/layergroup.js

@@ -90,6 +90,17 @@ LayergroupController.prototype.register = function(app) {
     app.get(app.base_url_mapconfig +
             '/:token/dataview/:dataviewName/search', cors(), userMiddleware,
         this.dataviewSearch.bind(this));
+
+    app.get(app.base_url_mapconfig +
+            '/:token/analysis/:analysisIndex/node/:nodeId', cors(), userMiddleware,
+        this.analysisNodeStatus.bind(this));
+};
+
+LayergroupController.prototype.analysisNodeStatus = function(req, res) {
+    this.sendResponse(req, res, {
+        node_id: req.params.nodeId,
+        status: 'ready'
+    }, 200);
 };
 
 LayergroupController.prototype.dataview = function(req, res) {