Git commits in Moodle 2.9.0 by Russell Smith

commit 9129827158a50f8ff09aff8c51f1aed927c68d6e
Author: Russell Smith <mr-russ@smith2001.net>
Date:   Sun, 05 Apr 2015 18:03:08 +0800
Tag:    v2.9.0-beta

MDL-49755 backup: Cache backup information.


commit f08d1044b43647c94e2885959db8f0654b5ab79e
Author: Russell Smith <mr-russ@smith2001.net>
Date:   Fri, 16 Jan 2015 20:02:02 +0800
Tag:    v2.9.0-beta

MDL-49756 course: Add unit tests for section_options.


commit 1d293ca4095b68b9d57db7af41c3a595fb63b120
Author: Russell Smith <mr-russ@smith2001.net>
Date:   Thu, 12 Dec 2013 00:33:20 +0800
Tag:    v2.9.0-beta

MDL-43421 logging: Ignore race condition in access update.


commit 92996836d0bf2641aa6acbf5f98b2f915ece86f2
Author: Russell Smith <mr-russ@smith2001.net>
Date:   Sun, 08 Dec 2013 17:13:59 +0800
Tag:    v2.9.0-beta

MDL-41674 backup: Use a trie for grouped path detection.