Git commits in Moodle 2.0.4 by Adam Olley

commit c281550ce5f2b4466161f7b490616536dc2f9163
Author: Adam Olley <adam.olley@netspot.com.au>
Date:   Tue, 05 Apr 2011 09:38:50 +0800
Tag:    v2.0.4

MDL-25191: Properly destroy all elements of the modinfo cache

commit 0960f2f417b4e95fe9ae46bad103c114c57dc9cc
Author: Adam Olley <adam.olley@netspot.com.au>
Date:   Tue, 29 Mar 2011 09:16:17 +0800
Tag:    v2.0.4

MDL-27009: Fix role group by statement for statistics