Git commits in Moodle 2.4.4 by Jason Platts

commit e1267ba041f3e281ad480cd3b419f5dce04b33a2
Author: Jason Platts <j.platts@open.ac.uk>
Date:   Tue, 26 Mar 2013 23:26:54 +0800
Tag:    v2.4.4

MDL-37942 Images with non-alphanumeric chars in file name won't export

commit 261aae298bcd34fe17952d614f3a4bcede98f799
Author: Jason Platts <j.platts@open.ac.uk>
Date:   Tue, 26 Mar 2013 23:11:20 +0800
Tag:    v2.4.4

MDL-39342 stop users entering too long matching answers.