# File lib/generators/mousetrap/install/install_generator.rb, line 19
      def add_javascript_assets
        if File.exist?('app/assets/javascripts/application.js')
          insert_into_file "app/assets/javascripts/application.js", "//= require mousetrap\n", :after => "jquery_ujs\n"
        else
          copy_file "application.js", "app/assets/javascripts/application.js"
        end
      end