Author: Mihail Geshoski
MDL-65115 repository: Prevent unzipping if it will exceed allowed quota
http://git.moodle.org/gw?p=moodle.git;a=commit;h=4b60cede1e5be9c2b05ddfc8553854a62ae61e1f
http://github.com/moodle/moodle/commit/4b60cede1e5be9c2b05ddfc8553854a62ae61e1f
+ 3.9 en [cannotunzipcontentunreadable,core_repository]
+ 3.9 en [cannotunzipquotaexceeded,core_repository]