Don’t use call_user_func where not necessary
Add convenience method for parent name

resources matching ${parent_name} and ${parent_name_camelized} can now
be searched for using ResourceFinder#addSame($bCamelized=false)
Automatically register CKEditor plugins

if they match the following directory pattern:

web/js/widget/ckeditor-plugins/**/plugin.js
Add youtube plugin as submodule
Add method to get the parent as a file resource