Rails5でTurbolinksの挙動が変わってた。 ref: http://qiita.com/syou007/items/fda40f65634bb2fadf36

file0.coffee

$(document).on 'page:before-change' , -> console.log 'page:before-change'
$(document).on 'page:fetch'         , -> console.log 'page:fetch'
$(document).on 'page:receive'       , -> console.log 'page:receive'
$(document).on 'page:change'        , -> console.log 'page:change'
$(document).on 'page:update'        , -> console.log 'page:update'
$(document).on 'page:load'          , -> console.log 'page:load'
$(document).on 'ready page:load'    , -> console.log 'ready and load'
$(document).ready                     -> console.log '$(document).ready in assets'
$(window).on 'load'                 , -> console.log '$(window).load in assets'

file1.coffee

# ページ切り替え時（初回ページも対象）
$(document).on 'turbolinks:load', -> console.log 'turbolinks:load'
# ページ切り替え時（初回ページは対象外）
$(document).on 'turbolinks:render', -> console.log 'turbolinks:render'
# ページ遷移前
$(document).on 'turbolinks:request-start', -> console.log 'turbolinks:request-start'