Git commits in Moodle 2.9.2 by Jun Pataleta

commit a259be942b40221e2e6a1fc39d3dcf43e52f0c06
Author: Jun Pataleta <jun@moodle.com>
Date:   Thu, 20 Aug 2015 10:36:59 +0800
Tag:    v2.9.2

MDL-50852 formslib: Fixed client-side form validation problem.


commit aed2279b503aaf36df73943cc86d5e6d03103ef5
Author: Jun Pataleta <jun@moodle.com>
Date:   Thu, 13 Aug 2015 17:35:06 +0800
Tag:    v2.9.2

MDL-44828 filelib: Fix open error for force-downloaded files in mobile


commit 3999a761eb89942024bcd94aeaa8661c43af679f
Author: Jun Pataleta <jun@moodle.com>
Date:   Tue, 28 Jul 2015 17:16:32 +0800
Tag:    v2.9.2

MDL-49864 mod_assign: Fix missing annotations when viewing PDF