Merge pull request #5950 from rushi216/master

added several properties on configuration object

ckeditor/ckeditor.d.ts

@@ -572,6 +572,10 @@ declare module CKEDITOR {
         colorButton_colors?: string;
         startupFocus?: boolean;
         on?: any;
+        extraPlugins?: string;
+        height?: string | number;
+        toolbarLocation?: string;
+        readOnly?: boolean;
     }