In a glossary activity, students can add entries including attaching files

1. Login as a student and access a glossary.
2. Add a new entry, completing the various fields and click the 'Save changes' button.
3. Try editing the entry and attach a file.
4. Check that the entry displays a link to the attached file
5. Try editing the entry again and embed a media file
6. Check that the embedded media file is displayed inline.
7. Logout and login as teacher and edit glossary
8. Set Display format to "Full with author"
9. Logout and login as student, access glossary and ensure you can see "Browse by Author" tab and it works.
10. As teacher try deleting the entry.