A teacher can import and export glossary entries via an XML file

This test requires a glossary in which several students have added entries. The entries should be organised into more than one category.

1. Login as a teacher and try exporting glossary activity entries to XML file.
2. Open the XML file and check that all entries are listed.
3. Create another glossary activity.
4. Try importing the entries from the XML file, ticking the import categories checkbox.
5. Check that the entries and categories have been imported correctly.