On the last step of a user tour, the 'Next' button has a class of 'btn-primary', making it blue (but disabled).

It would be less confusing to users if this was removed on the last step, and that class added to the 'end tour' button instead.

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Suggested change to tour.js (feel free to improve if it's not great coding):

Line 711 original: template.find('[data-role="next"]').prop('disabled', true)

Line 711 change: template.find('[data-role="next"]').prop('disabled', true).removeClass("btn-primary");

Add:    

if (this.isLastStep(stepConfig.stepNumber)) {
        template.find('[data-role="end"]').addClass("btn-primary");
    } else {
        template.find('[data-role="end"]');
}