redirect paste menu items to call paste actions, not notebook paste functions

notebook/static/notebook/js/actions.js

@@ -283,6 +283,12 @@ define(function(require){
                 env.notebook.copy_cell();
             }
         },
+        'paste-cell-replace' : {
+            help: 'paste cells replace',
+            handler : function (env) {
+                env.notebook.paste_cell_replace();
+            }
+        },
         'paste-cell-above' : {
             help: 'paste cells above',
             help_index : 'eg',

notebook/static/notebook/js/notebook.js

@@ -1567,11 +1567,14 @@ define([
         var that = this;
         if (!this.paste_enabled) {
             $('#paste_cell_replace').removeClass('disabled')
-                .on('click', function () {that.paste_cell_replace();});
+                .on('click', function () {that.keyboard_manager.actions.call(
+                    'jupyter-notebook:paste-cell-replace');});
             $('#paste_cell_above').removeClass('disabled')
-                .on('click', function () {that.paste_cell_above();});
+                .on('click', function () {that.keyboard_manager.actions.call(
+                    'jupyter-notebook:paste_cell_above');});
             $('#paste_cell_below').removeClass('disabled')
-                .on('click', function () {that.paste_cell_below();});
+                .on('click', function () {that.keyboard_manager.actions.call(
+                    'jupyter-notebook:paste-cell-below');});
             this.paste_enabled = true;
         }
     };