Git commits in Moodle 2.5.7 by Sam Hemelryk

commit 84cdd9bb4bd71396745b9dee4645c7a97064a866
Author: Sam Hemelryk <sam@moodle.com>
Date:   Wed, 21 May 2014 17:02:29 +0800
Tag:    v2.5.7

MDL-44711 navigation: reverted behat chaneges

commit 8bbce8c1c1497b4284bdb437371faab563c30d92
Author: Sam Hemelryk <sam@moodle.com>
Date:   Wed, 21 May 2014 05:11:39 +0800
Tag:    v2.5.7

MDL-45499 admin: fixed error when displaying page settings

commit 5d946b7458810cb5532b438aa8e5ecab66120b47
Author: Sam Hemelryk <sam@moodle.com>
Date:   Tue, 20 May 2014 18:07:29 +0800
Tag:    v2.5.7

MDL-44711 block_navigation: fixed typo in behat tests

commit 84e0b70dd7faaa548b2642538b7c49f46a51db18
Author: Sam Hemelryk <sam@moodle.com>
Date:   Tue, 13 May 2014 07:18:47 +0800
Tag:    v2.5.7

MDL-44711 navigation: better handling of course expansion exception