add assets

assets/ckeditor/ckeditor/build-config.js

@@ -1,5 +1,5 @@
 /**
- * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2021, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/license
  */
 
@@ -13,10 +13,10 @@
  * (1) https://ckeditor.com/cke4/builder
  *     Visit online builder to build CKEditor from scratch.
  *
- * (2) https://ckeditor.com/cke4/builder/4e3a4ca28d8cb0c407b480601a63d4b6
+ * (2) https://ckeditor.com/cke4/builder/e431e193e5a737fc50cd68589730b6df
  *     Visit online builder to build CKEditor, starting with the same setup as before.
  *
- * (3) https://ckeditor.com/cke4/builder/download/4e3a4ca28d8cb0c407b480601a63d4b6
+ * (3) https://ckeditor.com/cke4/builder/download/e431e193e5a737fc50cd68589730b6df
  *     Straight download link to the latest version of CKEditor (Optimized) with the same setup as before.
  *
  * NOTE:
@@ -39,6 +39,7 @@ var CKBUILDER_CONFIG = {
 		'.jshintrc',
 		'.mailmap',
 		'.npm',
+		'.nvmrc',
 		'.travis.yml',
 		'bender-err.log',
 		'bender-out.log',
@@ -48,6 +49,7 @@ var CKBUILDER_CONFIG = {
 		'gruntfile.js',
 		'less',
 		'node_modules',
+		'package-lock.json',
 		'package.json',
 		'tests'
 	],
@@ -64,9 +66,11 @@ var CKBUILDER_CONFIG = {
 		'copyformatting' : 1,
 		'dialogadvtab' : 1,
 		'div' : 1,
+		'editorplaceholder' : 1,
 		'elementspath' : 1,
 		'enterkey' : 1,
 		'entities' : 1,
+		'exportpdf' : 1,
 		'filebrowser' : 1,
 		'find' : 1,
 		'flash' : 1,
@@ -90,9 +94,9 @@ var CKBUILDER_CONFIG = {
 		'newpage' : 1,
 		'pagebreak' : 1,
 		'pastefromgdocs' : 1,
+		'pastefromlibreoffice' : 1,
 		'pastefromword' : 1,
 		'pastetext' : 1,
-		'pastetools' : 1,
 		'preview' : 1,
 		'print' : 1,
 		'removeformat' : 1,
@@ -114,7 +118,6 @@ var CKBUILDER_CONFIG = {
 		'toolbar' : 1,
 		'undo' : 1,
 		'uploadimage' : 1,
-		'wsc' : 1,
 		'wysiwygarea' : 1
 	},
 	languages : {