adapt-contrib-spoor: Unable to set commitOnStatusChange setting to false

[chogben]

When publishing a course with Spoor and the setting _commitOnStatusChange set to false, it is not picked up and set during runtime.

It appears as though the if statement around the setting assignment only checks for true values[0], and as the default value is already true[1], it can never be set to false.

This got us in our older LMS platform which requires this setting to be set to false.

I opened a PR for a proposed fix here: adaptlearning/adapt-contrib-spoor#203

[0] https://github.com/adaptlearning/adapt-contrib-spoor/blob/master/js/adapt-stateful-session.js#L57
[1] https://github.com/adaptlearning/adapt-contrib-spoor/blob/master/js/scorm/wrapper.js#L31