The singlescobasic_missingorg.zip file includes a modified version of
the javascript which deliberately breaks content.
We need it to have different file names to not break other similar copies
of the file.
SCORM 2004 uses the element 'cmi.completion_status' to store the
completion status of a SCO, not 'cmi.core.lesson_status'.
This amends scorm_check_mode so that the right element is looked up.
When scorm_version_check returns false, SCORM 1.2 is assumed.
The previous used package were adding a second iframe
inside the scorm iframe and was slow loading it;
this patch replaces it for a simple one without any
extra iframe.
Dan Marsden