Author: Paul Holden
MDL-75165 notes: implement notes datasource for custom reporting.
Create entity definition containing report elements for notes. Add
new report source joining the entity to the user/course entities to
provide data for the reportbuilder editor.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=a641a8dfa2d452df6a9f5e1378f6be5a82031788
http://github.com/moodle/moodle/commit/a641a8dfa2d452df6a9f5e1378f6be5a82031788
+ 4.1 en [author,core_notes]
+ 4.1 en [recipient,core_notes]