you're stuck on jQuery < 1.7

replace calls to jQuery 1.7+'s `on` with calls to pre 1.7 `bind`

Input

    $('li.assessment_question').on('click', 'a.add_question_addendum', @openQuestionAddendumForm)
    $('li.assessment_question').on('click', 'a.cancel_question_addendum', @cancelQuestionAddendum)
    $('li.assessment_question').on('ajax:beforeSend', 'form.question_addendum_form', @hideFormEnableAddAddendumLink)
    $('li.assessment_question').on('ajax:success', 'form.question_addendum_form', @appendQuestionAddendum)

Output

    $('a.add_question_addendum').bind('click', @openQuestionAddendumForm)
    $('a.cancel_question_addendum').bind('click', @cancelQuestionAddendum)
    $('form.question_addendum_form').bind('ajax:beforeSend', @hideFormEnableAddAddendumLink)
    $('form.question_addendum_form').bind('ajax:success', @appendQuestionAddendum)