Git commits in Moodle 2.7.4 by Dongsheng Cai

commit 80361bf252af60ab5734650079dc59c0de30105c
Author: Dongsheng Cai <dongsheng@moodle.com>
Date:   Thu, 11 Oct 2012 08:24:01 +0800
Tag:    v2.7.4

MDL-35983 Try to use real file name from EQUELLA