Git commits in Moodle 1.6.8 by stronk7

commit 7b8a8bc587bf5c4f81eaf3c0d12dc2d918a341c7
Author: stronk7 <stronk7>
Date:   Fri, 26 Sep 2008 17:48:24 +0800
Tag:    v1.6.8

Backporting MDL-15896 (tabs and recent activity) from HEAD


commit cb46a969f8973ac35f42c6c4284cb3dcbc9565da
Author: stronk7 <stronk7>
Date:   Fri, 26 Sep 2008 06:39:23 +0800
Tag:    v1.6.8

Protect message settings with sesskey. MDL-16688 ; backported from 17_STABLE