Author: Andrew Nicols
MDL-61819 editor: Implement editor null providers
http://git.moodle.org/gw?p=moodle.git;a=commit;h=8c815348eb21f1b37ba972526ff505d668a6564c
http://github.com/moodle/moodle/commit/8c815348eb21f1b37ba972526ff505d668a6564c
+ 3.5 en [privacy:metadata,editor_textarea]
+ 3.5 en [privacy:metadata,editor_tinymce]