Git commits in Moodle 2.1.5 by Rossiani Wijaya

commit 8bfd16856a553bf8cee9d52e6157d28eef005c12
Author: Rossiani Wijaya <rwijaya@moodle.com>
Date:   Thu, 23 Feb 2012 14:52:01 +0800
Tag:    v2.1.5

MDL-31399 Lesson Module: Fixed horizontal scroll bar issue when using rtl language format (eg: arabic)

commit dbac1a517731bd7af0704f977b5f38b1e59715fb
Author: Rossiani Wijaya <rwijaya@moodle.com>
Date:   Tue, 21 Feb 2012 12:39:24 +0800
Tag:    v2.1.5

MDL-30910: Lesson Module: fix lesson progress bar for screen readers AMOS BEGIN    CPY [progresscompleted, mod_lesson] AMOS END

commit 6df07690e2c505cbdee044bdca0dcd3fe0f52cbe
Author: Rossiani Wijaya <rwijaya@moodle.com>
Date:   Mon, 13 Feb 2012 11:18:39 +0800
Tag:    v2.1.5

MDL-30911: mod_lesson: fix sub-heading level to be lower than lesson title. This issue is an improvement of accessibility compliance