Author: Ankit Kumar Agarwal
MDL-26890 Forums Check on filesize if the file is added to the forum from private area
http://git.moodle.org/gw?p=moodle.git;a=commit;h=1a17422d24920cb6d7ecfdd23e692670a8b030ee
http://github.com/moodle/moodle/commit/1a17422d24920cb6d7ecfdd23e692670a8b030ee
+ 2.0 en [filesizenull,core_repository]