Git commits in Moodle 2.4.7 by rwijaya

commit af11bd26b6443b36456b7fb3fcfd2e496d9464d8
Author: rwijaya <rwijaya@moodle.com>
Date:   Mon, 21 Oct 2013 13:47:22 +0800
Tag:    v2.4.7

MDL-38664 Lesson mod: code improvement for lesson re-attempt page

commit ac23be5d24741510f3aab81f2100810c4c3fb601
Author: rwijaya <rwijaya@moodle.com>
Date:   Mon, 21 Oct 2013 11:12:45 +0800
Tag:    v2.4.7

MDL-42111 TinyMCE media preview: fix video preview display for TinyMCE media.

commit 4f718dc60c84d1242fd2953c296f24e52dbbf74e
Author: rwijaya <rwijaya@moodle.com>
Date:   Tue, 15 Oct 2013 18:59:40 +0800
Tag:    v2.4.7

MDL-42338 lti_mod: convert hardcoded string.