Update: CKEditor Build

How to update the custom CKEditor build we use for Backdrop CMS

CAUTION: this documentation is outdated. With CKEditor 5 we're using npm instead.

1. Visit http://ckeditor.com/builder.
2. Upload the core/misc/ckeditor/build-config.js file to the site, indicating the plugins that are desired.
3. Save/expand the downloaded archive.
4. Remove the following files/directories from the expanded archive
   • README.md,
   • adapters,
   • config.js,
   • contents.css,
   • samples,
   • skins/moono-lisa/readme.md,
   • styles.js,
5. Copy the new files into core/misc/ckeditor/*.
6. Double check that the build-config.js file retains 2 sections of code that are specific to Backdrop:
   • Docblock at the very top of the file
   • Around line 60, list of files that need to be removed from the build
7. Update the define('CKEDITOR_VERSION', 'x.y.z'); line in core/modules/ckeditor/ckeditor.module to reflect the new CKEditor version.