lk | update rails version, fix logging in specs, and remove turbolinks

app/assets/javascripts/application.js

@@ -12,7 +12,6 @@
 //
 //= require jquery
 //= require jquery_ujs
-//= require turbolinks
 //= require_tree .
 //= require bootstrap
 //= require bootstrap-datepicker

app/workers/bike_index_logger.rb

@@ -5,7 +5,6 @@ class BikeIndexLogger
 
     conn = Faraday.new(:url => "#{ENV['BIKE_INDEX_URL']}") do |faraday|
       faraday.request  :url_encoded
-      faraday.response :logger
       faraday.adapter  Faraday.default_adapter
     end