CLONE - A group may be given a description and a picture

This test requires a course with users organised into groups (MDLQA-142).

1. Login as a teacher, access the course and follow the groups link in the course administration settings.
2. Select a group and edit the group settings.
3. Add a description, upload a picture and save the changes.
4. On the participants page, select the group and check that the description and picture are correctly displayed.
5. View the forum posts of a member of the group and check that the picture is displayed next to each forum post.