Make sure requirejs can't be set more than once.

notebook/static-src/base/js/globals.js

@@ -8,8 +8,19 @@
  * This module handles the global loading of those tools. 
  */
 module.exports = new Promise(function(resolve, reject) {
+    if (window.hasOwnProperty('jquery')) {
+        resolve();
+    }
+    
     requirejs(['jquery'], function($) {
-        window.$ = window.jQuery = $;
+        var jQueryProperty = {
+            get: function() {
+                return $;
+            },
+            configurable: false
+        };
+        Object.defineProperty(window, '$', jQueryProperty);
+        Object.defineProperty(window, 'jQuery', jQueryProperty);
         console.log('jQuery loaded and available in global namespace');
         
         requirejs(['jqueryui', 'bootstrap'], function() {
@@ -19,7 +30,7 @@ module.exports = new Promise(function(resolve, reject) {
                 reject(new Error('bootstrap not injected into jQuery prototype'));
             }
             
-            if ($.prototype.draggable) {
+            if ($.prototype.draggable && $.prototype.resizable) {
                 console.log('jQueryUI loaded and injected into jQuery\'s namespace');
             } else {
                 reject(new Error('jQueryUI not injected into jQuery prototype'));
@@ -43,7 +54,13 @@ module.exports = new Promise(function(resolve, reject) {
                 'notebook/js/codemirror-ipython',
                 'notebook/js/codemirror-ipythongfm'
             ], function(CodeMirror) {
-                window.CodeMirror = CodeMirror;
+                var codeMirrorProperty = {
+                    get: function() {
+                        return CodeMirror;
+                    },
+                    configurable: false
+                };
+                Object.defineProperty(window, 'CodeMirror', codeMirrorProperty);
                 console.log('CodeMirror loaded and available in global namespace');
                 
                 resolve();

notebook/static-src/notebook/js/commandpalette.js

@@ -4,8 +4,7 @@
     "use strict";
 
     var QH = require("notebook/js/quickhelp");
-    var $ = require("jquery");
-
+    
     /**
      * Humanize the action name to be consumed by user.
      * internaly the actions anem are of the form

package.json

@@ -12,7 +12,8 @@
     "clean": "npm run clean:js && npm run clean:css",
     "clean:css": "rimraf notebook/static/style/ipython.min.css && rimraf notebook/static/style/style.min.css",
     "clean:js": "rimraf notebook/static/auth/js && rimraf notebook/static/base/js && rimraf notebook/static/edit/js && rimraf notebook/static/notebook/js && rimraf notebook/static/terminal/js && rimraf notebook/static/tree/js && rimraf notebook/static/services",
-    "postinstall": "npm run bower",
+    "uninstall": "npm run clean && rimraf notebook/static/components && rimraf node_modules",
+    "postinstall": "npm run bower && npm run build",
     "bower": "bower install --allow-root --config.interactive=false",
     "build": "concurrent \"npm run build:css\" \"npm run build:js\"",
     "build:css": "concurrent \"npm run build:css:ipython\" \"npm run build:css:style\"",
@@ -30,10 +31,8 @@
   "devDependencies": {
     "aliasify": "^1.7.2",
     "amd-wrap-legacy": "^0.2.0",
-    "backbone": "~1.2",
     "bower": "*",
     "browserify": "^11.0.1",
-    "codemirror": "~5.5",
     "concurrently": "^0.1.1",
     "glob": "^5.0.14",
     "less": "~2",