Git commits in Moodle 2.5.0 by Brian King

commit 6e89fb030922d963dbc51c57a02efe599ca44c3f
Author: Brian King <brian@liip.ch>
Date:   Wed, 19 Dec 2012 06:57:22 +0800
Tag:    v2.5.0-beta

MDL-37225 reset cachstore_static store when purging


commit e226a86d7654656a2f3eff1b7ce956dfe73eb4ed
Author: Brian King <brian@liip.ch>
Date:   Fri, 05 Oct 2012 00:25:41 +0800
Tag:    v2.5.0-beta

MDL-36035 course: reduce database queries when calling print_whole_category_list