Author: Frederic Massart
MDL-33766 files: Improved validation of areamaxbytes
http://git.moodle.org/gw?p=moodle.git;a=commit;h=68acd1157e2f3d32ff65a8599189ebacdb8e2f5f
http://github.com/moodle/moodle/commit/68acd1157e2f3d32ff65a8599189ebacdb8e2f5f
+ 2.4 en [user:ignoreuserquota,core_role]