Git commits in Moodle 1.8.7 by jerome

commit d5e89c79643cfac9be180c3883fdd800a6befb9e
Author: jerome <jerome>
Date:   Wed, 27 Aug 2008 15:06:57 +0800
Tag:    v1.8.7

MDL-16043: manage case when administrator set enrol_remotecoursefield or enrol_remoteuserfield in UPPERCASE, merged from 19

commit 224ac0b90fb052e319582b9b533b31e94b411d47
Author: jerome <jerome>
Date:   Thu, 14 Aug 2008 19:34:00 +0800
Tag:    v1.8.7

MDL-16043:  ensures cross-db: add lowercase conversion for every database fieldname, merged from 19

commit f6fd87d97b04c91f5dc89210c968abd64e95c016
Author: jerome <jerome>
Date:   Thu, 14 Aug 2008 17:53:19 +0800
Tag:    v1.8.7

MDL-15175:  ensures cross-db: add a lowercase conversion for the username, merged from 19

commit 15a9e839f20d8f9cbd2ebb746c677facf3025af4
Author: jerome <jerome>
Date:   Wed, 13 Aug 2008 14:35:22 +0800
Tag:    v1.8.7

MDL-15175: fix sync with external Oracle database merged from 1.9