Massive performance improvement inside the Quick Enrol window, particularly with regard to autocomplete.

Fixed code which prevented creating new students/certificates or invoices in a blank new database

Don't export qualification to the 030 AVETMISS if the outcome has no module (it is a pretend course)

Export 81 if course has no modules, not if it just isn't VET flagged.

Export the admin site if we used it in the 120 file, even if that was just used as a default site

Don't export 130 AVETMISS file records if any of the outcomes for the enrolment are past the export end date

Don't export certificates which are revoked or deleted in the 130 file