Git commits in Moodle 1.7.0 by andreabix

commit 88b5a2a15c347c88caca054220b4526f865102df
Author: andreabix <andreabix>
Date:   Sun, 29 Oct 2006 18:07:33 +0800
Tag:    v1.7.0

Fix bug MDL-7248

commit 446b52f9089861b4457de9dd53926475a44595a2
Author: andreabix <andreabix>
Date:   Thu, 05 Oct 2006 17:52:38 +0800
Tag:    v1.7.0

overlapping fix

commit 3fa299acc61b919bded16a29356dd9a0b3ee5c9a
Author: andreabix <andreabix>
Date:   Fri, 05 May 2006 16:56:03 +0800
Tag:    v1.7.0

Minor refinements