CLONE - A user can add files from Alfresco 4

This test requires the Alfresco repository to be enabled and an Alfresco account for use in testing. Please note that Alfresco 4 is required for this test since completely different API is used in Alfresco 5.0.c, see MDL-49344

1. Login as a student and go to a forum.
2. Add a new discussion topic and click the Add button to add an attachment.
3. Choose Alfresco in the file picker then click the Login button.
4. Grant access to your Alfresco account.
5. Select a file then click the 'Post to forum' button.
6. Check that the Alfresco file is shown as an attachment to the post.
7. Try downloading the file.