rename kernel_status -> kernel_id

IPython/frontend/html/notebook/handlers.py

@@ -596,7 +596,7 b' class NotebookRootHandler(AuthenticatedHandler):'
             nid = f['notebook_id']
             kid = km.kernel_for_notebook(nid)
             if  kid is not None:
-                f['kernel_status']=kid
+                f['kernel_id']=kid
         self.finish(jsonapi.dumps(files))
 
     @web.authenticated

IPython/frontend/html/notebook/static/js/notebooklist.js

@@ -108,7 +108,7 b' var IPython = (function (IPython) {'
         for (var i=0; i<len; i++) {
             var notebook_id = data[i].notebook_id;
             var nbname = data[i].name;
-            var kernel = data[i].kernel_status;
+            var kernel = data[i].kernel_id;
             var item = this.new_notebook_item(i);
             this.add_link(notebook_id, nbname, item);
             if (!IPython.read_only){