Git commits in Moodle 2.5.2 by prateeksachan

commit 7c7563c46a88e22f6f0163eb3ce59ac3a05a94b2
Author: prateeksachan <ps@prateeksachan.com>
Date:   Wed, 17 Jul 2013 09:52:37 +0800
Tag:    v2.5.2

MDL-40420: timemodified field update when lesson_page is updated

commit ef57de83dba71bbad08c884d7308098a02329f5a
Author: prateeksachan <ps@prateeksachan.com>
Date:   Mon, 01 Jul 2013 16:59:10 +0800
Tag:    v2.5.2

MDL-40386: Fix for updating timemodified field in book_chapters