Git commits in Moodle 1.6.x by anthonyforth

commit 88629fc41946d91ebd87579c369b82bcae652b31
Author: anthonyforth <anthonyforth>
Date:   Tue, 21 Mar 2006 18:31:28 +0800
Tag:    v1.6.0

Rename backup_ids_uk constraint to include prefix to allow easy installation of multiple instances from one database.