Git commits in Moodle 1.7.3 by cataluke

commit 0c34a17b09ea7c203417ff86eb4dcd231b7bf628
Author: cataluke <cataluke>
Date:   Wed, 18 Apr 2007 10:45:14 +0800
Tag:    v1.7.3

admin/uploaduser.php: Fixed not enrolling user into course if user already exists

commit b2787982b7309e6faccc182d2b2962610ac41856
Author: cataluke <cataluke>
Date:   Tue, 17 Apr 2007 13:57:06 +0800
Tag:    v1.7.3

MDL-7856 - make database search case-insensitive for PostgreSQL too.