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=cb72d845f50ea3ef8888a3f978d1da757337a1c9
http://github.com/moodle/moodle/commit/cb72d845f50ea3ef8888a3f978d1da757337a1c9
+ 4.0 en [cannotunzipcontentunreadable,core_repository]
+ 4.0 en [cannotunzipquotaexceeded,core_repository]