Fixes a case where .oncomplete and .onexit callbacks run both

[mkarajohn]

Fixes .onexit callbacks firing when user hits Enter on 'Done' button, of last step.

Since there is a clear distinction between a 'complete' and an 'exit' event, I think it is wrong behaviour to fire 'exit' callbacks when the intro was 'completed'

[mkarajohn]

@afshinm is this acknowledged?

[rhyous]

I disagree. Complete is when done is clicked. Exit is whenever IntroJs closes, which includes after Complete runs.

So when clicking done, two events should occur: oncomplete and onexit.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.