Author: Dan Marsden
MDL-28535 SCORM remove old IE 6 related warning about zlib
http://git.moodle.org/gw?p=moodle.git;a=commit;h=04c99f8cdf21638cf4a4a32abfb13532c35ea14d
http://github.com/moodle/moodle/commit/04c99f8cdf21638cf4a4a32abfb13532c35ea14d
- 2.2 en [zlibwarning,mod_scorm]