Some fixes for the tree view

IPython/html/static/notebook/js/menubar.js

@@ -110,11 +110,8 @@ define([
                 });
         });
         this.element.find('#open_notebook').click(function () {
-            window.open(utils.url_join_encode(
-                that.notebook.base_url,
-                'tree',
-                that.notebook.notebook_path
-            ));
+            var parent = utils.url_path_split(that.notebook.notebook_path)[0];
+            window.open(utils.url_join_encode(that.base_url, 'tree', parent));
         });
         this.element.find('#copy_notebook').click(function () {
             that.notebook.copy_notebook();

IPython/html/tree/handlers.py

@@ -38,7 +38,7 @@ class TreeHandler(IPythonHandler):
         cm = self.contents_manager
         if cm.file_exists(path):
             # it's not a directory, we have redirecting to do
-            model = cm.get(path, content=False)
+            model = cm.get_model(path, content=False)
             # redirect to /api/notebooks if it's a notebook, otherwise /api/files
             service = 'notebooks' if model['type'] == 'notebook' else 'files'
             url = url_escape(url_path_join(