Author: Dan Marsden
MDL-31652 SCORM - hide updatefreq setting and remove it if not required.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=8aba9cda72e8c1911cd95840bbf714e1b152c097
http://github.com/moodle/moodle/commit/8aba9cda72e8c1911cd95840bbf714e1b152c097
+ 2.3 en [updatefreq_help,mod_scorm]
- 2.3 en [onchanges,mod_scorm]