Git commits in Moodle 2.1.x by Mark Johnson

commit a10ec7f66a1a3dc5ff7698711776c33fa89b9dd2
Author: Mark Johnson <mark.johnson@tauntons.ac.uk>
Date:   Thu, 28 Jul 2011 20:46:04 +0800
Tag:    v2.1.2

MDL-28510 repository_youtube Use smaller thumbnails in search results

commit 2e348a66431381353f2c391388ce0b1defa17014
Author: Mark Johnson <mark.johnson@tauntons.ac.uk>
Date:   Thu, 28 Jul 2011 20:15:25 +0800
Tag:    v2.1.2

MDL-28509 repository_youtube Enable selection of sort order

commit 0638e55b1452d7267de0092adf8ccb01ec5e2d1d
Author: Mark Johnson <mark.johnson@tauntons.ac.uk>
Date:   Thu, 28 Jul 2011 20:15:25 +0800
Tag:    v2.1.2

MDL-28509 repository_youtube Enable selection of sort order

commit c78f8443e6535b29bd5a0fe401c4720103d1f143
Author: Mark Johnson <mark.johnson@tauntons.ac.uk>
Date:   Fri, 24 Jun 2011 20:25:28 +0800
Tag:    v2.1.0

MDL-28025 pagelib improve error message when $PAGE->context isn't set