Author: Mahmoud Kassaei
MDL-68562 Qtype_essay: Adding file-size limit to the attachment files
http://git.moodle.org/gw?p=moodle.git;a=commit;h=9dea33e8d0b6de51c595619d5f2990df0530ed5f
http://github.com/moodle/moodle/commit/9dea33e8d0b6de51c595619d5f2990df0530ed5f
+ 4.0 en [maxbytes,qtype_essay]